merge: develop dans main — release v1.0.0 (lecteur PDF/EPUB/CBZ avec zoom/pinch/modes, accueil refondu, pages d'erreur, profil clarifié — tickets #34 à #48)

.env.example

@@ -0,0 +1,10 @@
+# Local compose defaults. Copy to .env when you need machine-specific paths.
+
+# Directory mounted read-only as /library in the API container.
+READABOOK_LIBRARY_HOST_PATH=./data/library
+
+# Optional path accepted by the API and translated to /library.
+# For QA with the real local corpus, set for example:
+# READABOOK_LIBRARY_HOST_PATH=./Books
+# READABOOK_LIBRARY_ALIAS_FROM=/absolute/path/to/ReadaBook/Books
+READABOOK_LIBRARY_ALIAS_FROM=/library

.gitignore

@@ -5,7 +5,8 @@ dist
 *.sqlite
 *.sqlite-*
 *.tsbuildinfo
-data/storage
+data/
+Books/
 coverage
 .pnpm-store
 .ideai/

README.md

@@ -2,6 +2,16 @@
 
 ReadaBook est une application locale-first pour cataloguer, rechercher et lire une bibliothèque personnelle de livres EPUB/PDF stockés sur disque. Le MVP livré vise un usage domestique : un administrateur déclare un dossier local, lance un scan, puis les livres deviennent accessibles via un catalogue web et une API locale.
 
+## Dépôt distant
+
+Le dépôt est hébergé sur un Gitea self-hosted et peut être cloné via :
+
+```bash
+git clone https://gitea.anthonybouteiller.ovh/blomios/ReadaBook.git
+```
+
+Le déploiement git suit un git-flow simplifié : `main` (releases), `develop` (intégration), `feature/*` / `fix/*` (travail en cours).
+
 ## Fonctionnalités MVP présentes
 
 - Backend NestJS/Fastify exécutable avec healthcheck `GET /healthz`.
@@ -94,12 +104,14 @@ La PWA fournit `manifest.webmanifest`, `sw.js`, une icône maskable SVG et `disp
 Volumes :
 
 - `./data:/data` : base SQLite `/data/readabook.sqlite` et cache `/data/storage`.
-- `./data/library:/library:ro` : bibliothèque locale scannée en lecture seule.
+- `${READABOOK_LIBRARY_HOST_PATH:-./data/library}:/library:ro` : bibliothèque locale scannée en lecture seule.
 
 Variables principales :
 
 - `JWT_SECRET` : secret JWT, à changer hors développement.
 - `OPEN_LIBRARY_ENABLED=true|false` : active/désactive l’enrichissement distant.
+- `READABOOK_LIBRARY_HOST_PATH` : dossier hôte monté en lecture seule sur `/library`.
+- `READABOOK_LIBRARY_ALIAS_FROM` : chemin alternatif accepté par l’API et traduit vers `/library`.
 - `DATABASE_PATH=/data/readabook.sqlite`
 - `STORAGE_DIR=/data/storage`
 
@@ -134,6 +146,16 @@ curl -b cookies.txt \
   http://localhost:3000/admin/libraries
 ```
 
+Pour tester le corpus réel local `Books/` sans le versionner, crée un `.env` local :
+
+```bash
+READABOOK_LIBRARY_HOST_PATH=./Books
+READABOOK_LIBRARY_ALIAS_FROM=/chemin/absolu/vers/ReadaBook/Books
+```
+
+QA peut ensuite créer la bibliothèque avec le chemin absolu saisi dans `READABOOK_LIBRARY_ALIAS_FROM`;
+l’API le traduit vers `/library`, puis le scan manuel teste l’extraction ISBN/métadonnées/jaquettes sur ce corpus.
+
 ## Lancer un scan
 
 ```bash

apps/api/package.json

@@ -26,6 +26,7 @@
     "fastify": "^5.2.1",
     "jose": "^5.9.6",
     "mime-types": "^2.1.35",
+    "node-unrar-js": "^2.0.2",
     "reflect-metadata": "^0.2.2",
     "rxjs": "^7.8.1",
     "zod": "^3.24.2"

apps/api/src/admin/admin.controller.ts

@@ -1,9 +1,13 @@
-import { Body, Controller, Delete, Get, Param, Patch, Post, UseGuards } from "@nestjs/common";
+import { Body, Controller, Delete, Get, Param, Patch, Post, Put, UseGuards } from "@nestjs/common";
 import {
   CreateLibraryDto,
   CreateLibrarySchema,
   CreateUserDto,
   CreateUserSchema,
+  UpdateAutomationSettingsDto,
+  UpdateAutomationSettingsSchema,
+  UpdateMetadataSourcesConfigDto,
+  UpdateMetadataSourcesConfigSchema,
   UpdateLibraryDto,
   UpdateLibrarySchema,
   UpdateUserDto,
@@ -13,9 +17,11 @@ import { AuthGuard } from "../auth/auth.guard.js";
 import { Roles } from "../auth/roles.decorator.js";
 import { RolesGuard } from "../auth/roles.guard.js";
 import { AuthService } from "../auth/auth.service.js";
+import { AutomationService } from "../automation/automation.service.js";
 import { ZodValidationPipe } from "../common/zod-validation.pipe.js";
 import { JobsService } from "../jobs/jobs.service.js";
 import { LibrariesService } from "../libraries/libraries.service.js";
+import { MetadataService } from "../metadata/metadata.service.js";
 import { ScannerService } from "../scanner/scanner.service.js";
 
 @Controller("admin")
@@ -26,7 +32,9 @@ export class AdminController {
     private readonly auth: AuthService,
     private readonly libraries: LibrariesService,
     private readonly jobs: JobsService,
-    private readonly scanner: ScannerService
+    private readonly scanner: ScannerService,
+    private readonly metadata: MetadataService,
+    private readonly automation: AutomationService
   ) {}
 
   @Get("users")
@@ -80,4 +88,34 @@ export class AdminController {
   listJobs() {
     return this.jobs.list();
   }
+
+  @Get("metadata-sources")
+  metadataSources() {
+    return this.metadata.getSourcesConfig();
+  }
+
+  @Put("metadata-sources")
+  updateMetadataSources(@Body(new ZodValidationPipe(UpdateMetadataSourcesConfigSchema)) body: UpdateMetadataSourcesConfigDto) {
+    return this.metadata.updateSourcesConfig(body);
+  }
+
+  @Get("automation")
+  automationSettings() {
+    return this.automation.getSettings();
+  }
+
+  @Put("automation")
+  updateAutomationSettings(@Body(new ZodValidationPipe(UpdateAutomationSettingsSchema)) body: UpdateAutomationSettingsDto) {
+    return this.automation.updateSettings(body);
+  }
+
+  @Post("automation/run-scan")
+  runAutomationScan() {
+    return this.automation.runScanNow();
+  }
+
+  @Post("automation/run-enrich")
+  runAutomationEnrich() {
+    return this.automation.runEnrichNow();
+  }
 }

apps/api/src/admin/admin.module.ts

@@ -1,13 +1,15 @@
 import { Module } from "@nestjs/common";
 import { AuthModule } from "../auth/auth.module.js";
+import { AutomationModule } from "../automation/automation.module.js";
 import { DatabaseModule } from "../database/database.module.js";
 import { JobsModule } from "../jobs/jobs.module.js";
 import { LibrariesService } from "../libraries/libraries.service.js";
+import { MetadataModule } from "../metadata/metadata.module.js";
 import { ScannerModule } from "../scanner/scanner.module.js";
 import { AdminController } from "./admin.controller.js";
 
 @Module({
-  imports: [AuthModule, DatabaseModule, JobsModule, ScannerModule],
+  imports: [AuthModule, DatabaseModule, JobsModule, ScannerModule, MetadataModule, AutomationModule],
   controllers: [AdminController],
   providers: [LibrariesService]
 })

apps/api/src/app.module.ts

@@ -1,14 +1,16 @@
 import { Module } from "@nestjs/common";
 import { AdminModule } from "./admin/admin.module.js";
+import { AutomationModule } from "./automation/automation.module.js";
 import { AuthModule } from "./auth/auth.module.js";
 import { BooksModule } from "./books/books.module.js";
 import { DatabaseModule } from "./database/database.module.js";
 import { ProgressModule } from "./progress/progress.module.js";
+import { ReaderModule } from "./reader/reader.module.js";
 import { ScannerModule } from "./scanner/scanner.module.js";
 import { HealthController } from "./health.controller.js";
 
 @Module({
-  imports: [DatabaseModule, AuthModule, AdminModule, BooksModule, ProgressModule, ScannerModule],
+  imports: [DatabaseModule, AuthModule, AdminModule, BooksModule, ProgressModule, ReaderModule, ScannerModule, AutomationModule],
   controllers: [HealthController]
 })
 export class AppModule {}

apps/api/src/auth/auth.controller.ts

@@ -1,7 +1,14 @@
-import { Body, Controller, Get, Post, Res, UseGuards } from "@nestjs/common";
+import { Body, Controller, Get, Patch, Post, Res, UseGuards } from "@nestjs/common";
 import "@fastify/cookie";
 import { FastifyReply } from "fastify";
-import { BootstrapAdminDto, BootstrapAdminSchema, LoginDto, LoginSchema } from "@readabook/shared";
+import {
+  BootstrapAdminDto,
+  BootstrapAdminSchema,
+  LoginDto,
+  LoginSchema,
+  UpdateAccountDto,
+  UpdateAccountSchema
+} from "@readabook/shared";
 import { ZodValidationPipe } from "../common/zod-validation.pipe.js";
 import { AuthGuard } from "./auth.guard.js";
 import { AuthService } from "./auth.service.js";
@@ -11,6 +18,11 @@ import { CurrentUser, CurrentUserParam } from "./current-user.js";
 export class AuthController {
   constructor(private readonly auth: AuthService) {}
 
+  @Get("status")
+  async status() {
+    return this.auth.status();
+  }
+
   @Post("bootstrap")
   async bootstrap(@Body(new ZodValidationPipe(BootstrapAdminSchema)) body: BootstrapAdminDto) {
     return this.auth.bootstrapAdmin(body);
@@ -40,4 +52,13 @@ export class AuthController {
   me(@CurrentUserParam() user: CurrentUser) {
     return { user };
   }
+
+  @Patch("me")
+  @UseGuards(AuthGuard)
+  updateMe(
+    @CurrentUserParam() user: CurrentUser,
+    @Body(new ZodValidationPipe(UpdateAccountSchema)) body: UpdateAccountDto
+  ) {
+    return this.auth.updateOwnAccount(user.id, body);
+  }
 }

apps/api/src/auth/auth.service.ts

@@ -1,14 +1,14 @@
-import { ConflictException, Injectable, UnauthorizedException } from "@nestjs/common";
+import { ConflictException, Injectable, OnModuleInit, UnauthorizedException } from "@nestjs/common";
 import { eq } from "drizzle-orm";
 import { SignJWT, jwtVerify } from "jose";
 import argon2 from "argon2";
-import { BootstrapAdminDto, CreateUserDto, LoginDto, UpdateUserDto } from "@readabook/shared";
+import { BootstrapAdminDto, CreateUserDto, LoginDto, UpdateAccountDto, UpdateUserDto } from "@readabook/shared";
 import { DatabaseService } from "../database/database.service.js";
 import { users } from "../database/schema.js";
 import { CurrentUser } from "./current-user.js";
 
 @Injectable()
-export class AuthService {
+export class AuthService implements OnModuleInit {
   readonly cookieName: string;
   private readonly secret: Uint8Array;
 
@@ -17,6 +17,10 @@ export class AuthService {
     this.secret = new TextEncoder().encode(database.config.jwtSecret);
   }
 
+  async onModuleInit(): Promise<void> {
+    await this.ensureInitialAdmin();
+  }
+
   get cookieSecure(): boolean {
     return this.database.config.cookieSecure;
   }
@@ -29,6 +33,26 @@ export class AuthService {
     return this.createUser({ ...input, role: "admin" });
   }
 
+  async status() {
+    const existing = this.database.db.select({ id: users.id }).from(users).limit(1).get();
+    const initialAdmin = this.database.db
+      .select({ passwordHash: users.passwordHash, role: users.role })
+      .from(users)
+      .where(eq(users.email, this.database.config.initialAdminEmail.toLowerCase()))
+      .get();
+    const initialAdminPasswordIsDefault =
+      Boolean(initialAdmin) &&
+      initialAdmin?.role === "admin" &&
+      this.database.config.initialAdminPasswordIsDefault &&
+      (await argon2.verify(initialAdmin.passwordHash, this.database.config.initialAdminPassword));
+
+    return {
+      hasUsers: Boolean(existing),
+      initialAdminEmail: this.database.config.initialAdminEmail.toLowerCase(),
+      initialAdminPasswordIsDefault
+    };
+  }
+
   async login(input: LoginDto): Promise<{ token: string; user: CurrentUser }> {
     const user = this.database.db.select().from(users).where(eq(users.email, input.email.toLowerCase())).get();
     if (!user || !(await argon2.verify(user.passwordHash, input.password))) {
@@ -65,6 +89,35 @@ export class AuthService {
       .all();
   }
 
+  async updateOwnAccount(id: number, input: UpdateAccountDto) {
+    const user = this.database.db.select().from(users).where(eq(users.id, id)).get();
+    if (!user || !(await argon2.verify(user.passwordHash, input.currentPassword))) {
+      throw new UnauthorizedException("Current password is invalid");
+    }
+
+    const values: Partial<typeof users.$inferInsert> = { updatedAt: this.database.now() };
+    if (input.email) values.email = input.email.toLowerCase();
+    if (input.name !== undefined) values.name = input.name;
+    if (input.newPassword) values.passwordHash = await argon2.hash(input.newPassword);
+
+    try {
+      return this.database.db
+        .update(users)
+        .set(values)
+        .where(eq(users.id, id))
+        .returning({
+          id: users.id,
+          email: users.email,
+          name: users.name,
+          role: users.role,
+          createdAt: users.createdAt
+        })
+        .get();
+    } catch {
+      throw new ConflictException("Email already exists");
+    }
+  }
+
   async createUser(input: CreateUserDto) {
     const now = this.database.now();
     const passwordHash = await argon2.hash(input.password);
@@ -125,4 +178,22 @@ export class AuthService {
       .setExpirationTime("7d")
       .sign(this.secret);
   }
+
+  private async ensureInitialAdmin(): Promise<void> {
+    const existing = this.database.db.select({ id: users.id }).from(users).limit(1).get();
+    if (existing) return;
+
+    const now = this.database.now();
+    this.database.db
+      .insert(users)
+      .values({
+        email: this.database.config.initialAdminEmail.toLowerCase(),
+        name: "Initial administrator",
+        passwordHash: await argon2.hash(this.database.config.initialAdminPassword),
+        role: "admin",
+        createdAt: now,
+        updatedAt: now
+      })
+      .run();
+  }
 }

apps/api/src/automation/automation.module.ts

@@ -0,0 +1,11 @@
+import { Module } from "@nestjs/common";
+import { DatabaseModule } from "../database/database.module.js";
+import { ScannerModule } from "../scanner/scanner.module.js";
+import { AutomationService } from "./automation.service.js";
+
+@Module({
+  imports: [DatabaseModule, ScannerModule],
+  providers: [AutomationService],
+  exports: [AutomationService]
+})
+export class AutomationModule {}

apps/api/src/automation/automation.service.test.ts

@@ -0,0 +1,14 @@
+import { describe, expect, it } from "vitest";
+import { nextRunAt } from "./automation.service.js";
+
+describe("automation scheduling", () => {
+  it("computes the next daily run", () => {
+    const next = nextRunAt({ frequency: "daily", time: "03:30", dayOfWeek: 1 }, new Date("2026-08-23T02:00:00.000Z"));
+    expect(next.toISOString()).toBe("2026-08-23T03:30:00.000Z");
+  });
+
+  it("moves elapsed weekly runs to the next week", () => {
+    const next = nextRunAt({ frequency: "weekly", time: "03:30", dayOfWeek: 0 }, new Date("2026-08-23T04:00:00.000Z"));
+    expect(next.toISOString()).toBe("2026-08-30T03:30:00.000Z");
+  });
+});

apps/api/src/automation/automation.service.ts

@@ -0,0 +1,209 @@
+import { Injectable, OnModuleDestroy, OnModuleInit } from "@nestjs/common";
+import { Dirent, FSWatcher, readdirSync, watch } from "node:fs";
+import { join } from "node:path";
+import { eq } from "drizzle-orm";
+import { AutomationScheduleDto, AutomationSettingsDto, UpdateAutomationSettingsDto } from "@readabook/shared";
+import { DatabaseService } from "../database/database.service.js";
+import { automationSettings, libraries } from "../database/schema.js";
+import { ScannerService } from "../scanner/scanner.service.js";
+
+type WatchEntry = {
+  watchers: FSWatcher[];
+  timer: NodeJS.Timeout | null;
+};
+
+const defaultSchedule: AutomationScheduleDto = { frequency: "disabled", time: "03:00", dayOfWeek: 1 };
+
+@Injectable()
+export class AutomationService implements OnModuleInit, OnModuleDestroy {
+  private readonly watchers = new Map<number, WatchEntry>();
+  private scanTimer: NodeJS.Timeout | null = null;
+  private enrichTimer: NodeJS.Timeout | null = null;
+
+  constructor(
+    private readonly database: DatabaseService,
+    private readonly scanner: ScannerService
+  ) {}
+
+  onModuleInit(): void {
+    this.applyRuntimeSettings();
+  }
+
+  onModuleDestroy(): void {
+    this.stopWatchers();
+    this.clearSchedules();
+  }
+
+  getSettings(): AutomationSettingsDto {
+    const row = this.readRow();
+    return {
+      watchLibraries: row.watchLibraries,
+      autoEnrichNewBooks: row.autoEnrichNewBooks,
+      scanSchedule: parseSchedule(row.scanScheduleJson),
+      enrichSchedule: parseSchedule(row.enrichScheduleJson)
+    };
+  }
+
+  updateSettings(input: UpdateAutomationSettingsDto): AutomationSettingsDto {
+    const current = this.getSettings();
+    const next: AutomationSettingsDto = {
+      watchLibraries: input.watchLibraries ?? current.watchLibraries,
+      autoEnrichNewBooks: input.autoEnrichNewBooks ?? current.autoEnrichNewBooks,
+      scanSchedule: input.scanSchedule ? normalizeSchedule(input.scanSchedule) : current.scanSchedule,
+      enrichSchedule: input.enrichSchedule ? normalizeSchedule(input.enrichSchedule) : current.enrichSchedule
+    };
+    this.database.db
+      .update(automationSettings)
+      .set({
+        watchLibraries: next.watchLibraries,
+        autoEnrichNewBooks: next.autoEnrichNewBooks,
+        scanScheduleJson: JSON.stringify(next.scanSchedule),
+        enrichScheduleJson: JSON.stringify(next.enrichSchedule),
+        updatedAt: this.database.now()
+      })
+      .where(eq(automationSettings.id, 1))
+      .run();
+    this.applyRuntimeSettings();
+    return this.getSettings();
+  }
+
+  runScanNow() {
+    return this.scanner.enqueueAllLibrariesScan("Manual automation scan");
+  }
+
+  runEnrichNow() {
+    return this.scanner.enqueueMetadataEnrichment("Manual metadata enrichment");
+  }
+
+  private applyRuntimeSettings(): void {
+    const settings = this.getSettings();
+    settings.watchLibraries ? this.startWatchers() : this.stopWatchers();
+    this.configureSchedules(settings);
+  }
+
+  private startWatchers(): void {
+    const enabledLibraries = this.database.db.select().from(libraries).where(eq(libraries.enabled, true)).all();
+    const enabledIds = new Set(enabledLibraries.map((library) => library.id));
+    for (const [id, entry] of this.watchers) {
+      if (!enabledIds.has(id)) {
+        entry.watchers.forEach((watcher) => watcher.close());
+        if (entry.timer) clearTimeout(entry.timer);
+        this.watchers.delete(id);
+      }
+    }
+
+    for (const library of enabledLibraries) {
+      if (this.watchers.has(library.id)) continue;
+      const watchers = watchLibraryDirs(library.path, (_event, filename) => {
+        if (filename && !isBookPath(String(filename))) return;
+        const current = this.watchers.get(library.id);
+        if (!current) return;
+        if (current.timer) clearTimeout(current.timer);
+        current.timer = setTimeout(() => {
+          current.timer = null;
+          this.scanner.enqueueLibraryScan(library.id);
+        }, 1500);
+      });
+      for (const watcher of watchers) {
+        watcher.on("error", () => {
+          this.watchers.delete(library.id);
+        });
+      }
+      this.watchers.set(library.id, { watchers, timer: null });
+    }
+  }
+
+  private stopWatchers(): void {
+    for (const entry of this.watchers.values()) {
+      entry.watchers.forEach((watcher) => watcher.close());
+      if (entry.timer) clearTimeout(entry.timer);
+    }
+    this.watchers.clear();
+  }
+
+  private configureSchedules(settings: AutomationSettingsDto): void {
+    this.clearSchedules();
+    this.scanTimer = scheduleNext(settings.scanSchedule, () => {
+      this.scanner.enqueueAllLibrariesScan("Scheduled library scan");
+      this.configureSchedules(this.getSettings());
+    });
+    this.enrichTimer = scheduleNext(settings.enrichSchedule, () => {
+      this.scanner.enqueueMetadataEnrichment("Scheduled metadata enrichment");
+      this.configureSchedules(this.getSettings());
+    });
+  }
+
+  private clearSchedules(): void {
+    if (this.scanTimer) clearTimeout(this.scanTimer);
+    if (this.enrichTimer) clearTimeout(this.enrichTimer);
+    this.scanTimer = null;
+    this.enrichTimer = null;
+  }
+
+  private readRow(): typeof automationSettings.$inferSelect {
+    return this.database.db.select().from(automationSettings).where(eq(automationSettings.id, 1)).get()!;
+  }
+}
+
+export function scheduleNext(schedule: AutomationScheduleDto, run: () => void, now = new Date()): NodeJS.Timeout | null {
+  if (schedule.frequency === "disabled") return null;
+  const next = nextRunAt(schedule, now);
+  return setTimeout(run, Math.max(1000, next.getTime() - now.getTime()));
+}
+
+export function nextRunAt(schedule: AutomationScheduleDto, now = new Date()): Date {
+  const [hour, minute] = schedule.time.split(":").map(Number);
+  const next = new Date(now);
+  next.setUTCHours(hour, minute, 0, 0);
+  if (schedule.frequency === "weekly") {
+    const delta = (schedule.dayOfWeek - next.getUTCDay() + 7) % 7;
+    next.setUTCDate(next.getUTCDate() + delta);
+  }
+  if (next <= now) {
+    next.setUTCDate(next.getUTCDate() + (schedule.frequency === "weekly" ? 7 : 1));
+  }
+  return next;
+}
+
+function parseSchedule(value: string): AutomationScheduleDto {
+  try {
+    return normalizeSchedule(JSON.parse(value) as Partial<AutomationScheduleDto>);
+  } catch {
+    return defaultSchedule;
+  }
+}
+
+function normalizeSchedule(value: Partial<AutomationScheduleDto>): AutomationScheduleDto {
+  return {
+    frequency: value.frequency ?? "disabled",
+    time: value.time ?? "03:00",
+    dayOfWeek: value.dayOfWeek ?? 1
+  };
+}
+
+function isBookPath(filePath: string): boolean {
+  return /\.(epub|pdf|cbz|cbr)$/i.test(filePath);
+}
+
+function watchLibraryDirs(root: string, listener: (event: string, filename: string | Buffer | null) => void): FSWatcher[] {
+  const watchers: FSWatcher[] = [];
+  for (const dir of walkDirs(root)) {
+    watchers.push(watch(dir, listener));
+  }
+  return watchers;
+}
+
+function* walkDirs(root: string): Generator<string> {
+  yield root;
+  let entries: Dirent[];
+  try {
+    entries = readdirSync(root, { withFileTypes: true });
+  } catch {
+    return;
+  }
+  for (const entry of entries) {
+    if (entry.isDirectory()) {
+      yield* walkDirs(join(root, entry.name));
+    }
+  }
+}

apps/api/src/books/books.controller.ts

@@ -1,4 +1,4 @@
-import { Controller, Get, Param, Query, Res, UseGuards } from "@nestjs/common";
+import { Controller, Get, Headers, Param, Query, Res, UseGuards } from "@nestjs/common";
 import { FastifyReply } from "fastify";
 import { lookup } from "mime-types";
 import { BookQueryDto, BookQuerySchema } from "@readabook/shared";
@@ -26,11 +26,31 @@ export class BooksController {
     return this.books.get(Number(id));
   }
 
+  @Get(":id/pages")
+  pages(@Param("id") id: string) {
+    return this.books.listComicPages(Number(id));
+  }
+
+  @Get(":id/pages/:page")
+  async page(@Param("id") id: string, @Param("page") page: string, @Res() reply: FastifyReply) {
+    const result = await this.books.readComicPage(Number(id), Number(page));
+    reply.header("Content-Type", result.contentType);
+    reply.header("Cache-Control", "private, max-age=3600");
+    return reply.send(result.data);
+  }
+
   @Get(":id/file")
-  file(@Param("id") id: string, @Res() reply: FastifyReply) {
-    const { book, stream } = this.books.streamFile(Number(id));
-    reply.header("Content-Type", lookup(book.filePath) || "application/octet-stream");
-    reply.header("Content-Disposition", `inline; filename="${encodeURIComponent(book.title)}.${book.format}"`);
+  file(@Param("id") id: string, @Headers("range") range: string | undefined, @Res() reply: FastifyReply) {
+    const { book, stream, contentLength, contentType, end, partial, size, start } = this.books.streamFile(Number(id), range);
+    if (partial) {
+      reply.code(206);
+      reply.header("Content-Range", `bytes ${start}-${end}/${size}`);
+    }
+    reply.header("Accept-Ranges", "bytes");
+    reply.header("Content-Length", String(contentLength));
+    reply.header("Content-Type", contentType || lookup(book.filePath) || "application/octet-stream");
+    reply.header("Content-Disposition", `inline; filename*=UTF-8''${encodeURIComponent(`${book.title}.${book.format}`)}`);
+    reply.header("X-Content-Type-Options", "nosniff");
     return reply.send(stream);
   }
 

apps/api/src/books/books.module.ts

@@ -3,10 +3,11 @@ import { AuthModule } from "../auth/auth.module.js";
 import { DatabaseModule } from "../database/database.module.js";
 import { BooksController } from "./books.controller.js";
 import { BooksService } from "./books.service.js";
+import { SeriesController } from "./series.controller.js";
 
 @Module({
   imports: [AuthModule, DatabaseModule],
-  controllers: [BooksController],
+  controllers: [BooksController, SeriesController],
   providers: [BooksService],
   exports: [BooksService]
 })

apps/api/src/books/books.service.test.ts

@@ -0,0 +1,264 @@
+import { mkdtempSync, readdirSync, rmSync, statSync } from "node:fs";
+import { tmpdir } from "node:os";
+import { extname, join } from "node:path";
+import { afterEach, describe, expect, it } from "vitest";
+import { BookQuerySchema } from "@readabook/shared";
+import { DatabaseService } from "../database/database.service.js";
+import { books, libraries, series } from "../database/schema.js";
+import { BooksService } from "./books.service.js";
+
+const previousDatabasePath = process.env.DATABASE_PATH;
+const previousStorageDir = process.env.STORAGE_DIR;
+const realBooksPath = "/home/anthony/Documents/Projects/ReadaBook/Books";
+const tempDirs: string[] = [];
+
+afterEach(() => {
+  process.env.DATABASE_PATH = previousDatabasePath;
+  process.env.STORAGE_DIR = previousStorageDir;
+  for (const dir of tempDirs.splice(0)) {
+    rmSync(dir, { recursive: true, force: true });
+  }
+});
+
+describe("BooksService", () => {
+  it.runIf(canLoadBetterSqlite() && canReadRealBooksCorpus())("exposes every persisted real corpus book through the default catalogue query", () => {
+    const database = createDatabase();
+    try {
+      const service = new BooksService(database);
+      const now = database.now();
+      const library = database.db
+        .insert(libraries)
+        .values({ name: "Real corpus", path: realBooksPath, enabled: true, createdAt: now, updatedAt: now })
+        .returning()
+        .get();
+      const files = realCorpusBookFiles();
+
+      for (const [index, filePath] of files.entries()) {
+        database.db
+          .insert(books)
+          .values({
+            libraryId: library.id,
+            seriesId: null,
+            title: `Corpus ${String(index + 1).padStart(3, "0")}`,
+            author: null,
+            description: null,
+            isbn: null,
+            isbn13: null,
+            identifiersJson: null,
+            localMetadataJson: null,
+            language: null,
+            publisher: null,
+            publishedDate: null,
+            volumeNumber: null,
+            volumeLabel: null,
+            format: bookFormatFromPath(filePath),
+            filePath,
+            coverPath: null,
+            metadataStatus: "none",
+            metadataProvenanceJson: JSON.stringify({ title: "local" }),
+            scanStatus: "succeeded",
+            enrichmentStatus: "idle",
+            fileSize: statSync(filePath).size,
+            fileMtime: statSync(filePath).mtime.toISOString(),
+            createdAt: now,
+            updatedAt: now
+          })
+          .run();
+      }
+
+      expect(files.length).toBeGreaterThan(50);
+      expect(service.count()).toBe(files.length);
+      expect(service.list(BookQuerySchema.parse({}))).toHaveLength(files.length);
+    } finally {
+      database.onModuleDestroy();
+    }
+  });
+
+  it.runIf(canLoadBetterSqlite())("exposes metadata status and parsed provenance on book API rows", () => {
+    const database = createDatabase();
+    const service = new BooksService(database);
+    const now = database.now();
+    const library = database.db
+      .insert(libraries)
+      .values({ name: "Corpus", path: "/library", enabled: true, createdAt: now, updatedAt: now })
+      .returning()
+      .get();
+    const daredevil = database.db
+      .insert(series)
+      .values({
+        title: "Daredevil",
+        normalizedTitle: "daredevil",
+        description: "Collection Daredevil",
+        publisher: "Marvel",
+        createdAt: now,
+        updatedAt: now
+      })
+      .returning()
+      .get();
+    const book = database.db
+      .insert(books)
+      .values({
+        libraryId: library.id,
+        seriesId: daredevil.id,
+        title: "Daredevil",
+        author: "Roy Thomas",
+        description: "Daredevil affronte une nouvelle menace.",
+        isbn: "9782809476255",
+        isbn13: "9782809476255",
+        identifiersJson: null,
+        localMetadataJson: null,
+        language: "fre",
+        publisher: "Panini comics",
+        publishedDate: "0101-01-01T00:00:00+00:00",
+        volumeNumber: 1,
+        volumeLabel: "001",
+        format: "cbz",
+        filePath: "/library/Daredevil.cbz",
+        coverPath: "/storage/covers/daredevil.jpg",
+        metadataStatus: "enriched",
+        metadataProvenanceJson: JSON.stringify({ title: "local", author: "bnf", coverPath: "openlibrary" }),
+        scanStatus: "succeeded",
+        enrichmentStatus: "succeeded",
+        fileSize: 42,
+        fileMtime: now,
+        createdAt: now,
+        updatedAt: now
+      })
+      .returning()
+      .get();
+
+    expect(service.get(book.id)).toMatchObject({
+      publishedDate: null,
+      seriesId: daredevil.id,
+      volumeNumber: 1,
+      volumeLabel: "001",
+      series: { id: daredevil.id, title: "Daredevil", normalizedTitle: "daredevil" },
+      metadataStatus: "enriched",
+      metadataProvenance: { title: "local", author: "bnf", coverPath: "openlibrary" }
+    });
+    expect(service.list({ limit: 50, offset: 0 })[0]).toMatchObject({
+      publishedDate: null,
+      seriesId: daredevil.id,
+      volumeNumber: 1,
+      volumeLabel: "001",
+      series: { id: daredevil.id, title: "Daredevil", normalizedTitle: "daredevil" },
+      metadataStatus: "enriched",
+      metadataProvenance: { title: "local", author: "bnf", coverPath: "openlibrary" }
+    });
+
+    database.onModuleDestroy();
+  });
+
+  it.runIf(canLoadBetterSqlite())("lists a series with distinct books sharing the same volume", () => {
+    const database = createDatabase();
+    const service = new BooksService(database);
+    const now = database.now();
+    const library = database.db
+      .insert(libraries)
+      .values({ name: "Corpus", path: "/library", enabled: true, createdAt: now, updatedAt: now })
+      .returning()
+      .get();
+    const soloLeveling = database.db
+      .insert(series)
+      .values({
+        title: "Solo Leveling",
+        normalizedTitle: "solo leveling",
+        description: null,
+        publisher: null,
+        createdAt: now,
+        updatedAt: now
+      })
+      .returning()
+      .get();
+    for (const filePath of ["/library/Solo Leveling T03.cbz", "/library/Solo Leveling 003.cbz"]) {
+      database.db
+        .insert(books)
+        .values({
+          libraryId: library.id,
+          seriesId: soloLeveling.id,
+          title: filePath.includes("T03") ? "Solo Leveling T03" : "Solo Leveling 003",
+          author: null,
+          description: null,
+          isbn: null,
+          isbn13: null,
+          identifiersJson: null,
+          localMetadataJson: null,
+          language: null,
+          publisher: null,
+          publishedDate: null,
+          volumeNumber: 3,
+          volumeLabel: filePath.includes("T03") ? "T03" : "003",
+          format: "cbz",
+          filePath,
+          coverPath: null,
+          metadataStatus: "none",
+          metadataProvenanceJson: JSON.stringify({ title: "local" }),
+          scanStatus: "succeeded",
+          enrichmentStatus: "idle",
+          fileSize: 42,
+          fileMtime: now,
+          createdAt: now,
+          updatedAt: now
+        })
+        .run();
+    }
+
+    const result = service.getSeries(soloLeveling.id);
+
+    expect(result).toMatchObject({ id: soloLeveling.id, title: "Solo Leveling", normalizedTitle: "solo leveling" });
+    expect(result.books).toHaveLength(2);
+    expect(result.books.map((book) => [book.title, book.volumeNumber])).toEqual([
+      ["Solo Leveling 003", 3],
+      ["Solo Leveling T03", 3]
+    ]);
+
+    database.onModuleDestroy();
+  });
+});
+
+function createDatabase(): DatabaseService {
+  const dir = mkdtempSync(join(tmpdir(), "readabook-books-service-"));
+  tempDirs.push(dir);
+  process.env.DATABASE_PATH = join(dir, "readabook.sqlite");
+  process.env.STORAGE_DIR = join(dir, "storage");
+  return new DatabaseService();
+}
+
+function canLoadBetterSqlite(): boolean {
+  try {
+    const database = createDatabase();
+    database.onModuleDestroy();
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+function canReadRealBooksCorpus(): boolean {
+  try {
+    return realCorpusBookFiles().length > 0;
+  } catch {
+    return false;
+  }
+}
+
+function realCorpusBookFiles(root = realBooksPath): string[] {
+  return readdirSync(root, { withFileTypes: true }).flatMap((entry) => {
+    const path = join(root, entry.name);
+    if (entry.isDirectory()) return realCorpusBookFiles(path);
+    if (!entry.isFile()) return [];
+    return isBookFile(path) ? [path] : [];
+  });
+}
+
+function isBookFile(filePath: string): boolean {
+  return [".epub", ".pdf", ".cbz", ".cbr"].includes(extname(filePath).toLowerCase());
+}
+
+function bookFormatFromPath(filePath: string): "epub" | "pdf" | "cbz" | "cbr" {
+  const extension = extname(filePath).toLowerCase();
+  if (extension === ".epub") return "epub";
+  if (extension === ".cbz") return "cbz";
+  if (extension === ".cbr") return "cbr";
+  return "pdf";
+}

apps/api/src/books/books.service.ts

@@ -1,9 +1,13 @@
-import { Injectable, NotFoundException } from "@nestjs/common";
-import { createReadStream, existsSync } from "node:fs";
+import { BadRequestException, HttpException, HttpStatus, Injectable, NotFoundException } from "@nestjs/common";
+import { createReadStream, existsSync, statSync } from "node:fs";
+import { extname } from "node:path";
 import { and, eq, sql } from "drizzle-orm";
 import { BookQueryDto } from "@readabook/shared";
+import { listCbrImageEntries, readCbrPage } from "../common/cbr.js";
+import { listCbzImageEntries, readCbzPage } from "../common/cbz.js";
 import { DatabaseService } from "../database/database.service.js";
-import { books } from "../database/schema.js";
+import { books, series } from "../database/schema.js";
+import { normalizePublishedDate } from "../metadata/use-cases/normalize-published-date.js";
 
 @Injectable()
 export class BooksService {
@@ -16,17 +20,33 @@ export class BooksService {
     if (query.q) {
       return this.search(query.q, query.limit, query.offset);
     }
-    return this.database.db
+    const statement = this.database.db
       .select()
       .from(books)
       .where(filters.length ? and(...filters) : undefined)
-      .orderBy(books.title)
-      .limit(query.limit)
-      .offset(query.offset)
-      .all();
+      .orderBy(books.title);
+    const rows =
+      query.limit === undefined ? statement.all() : statement.limit(query.limit).offset(query.offset).all();
+    return rows
+      .map((book) => this.mapBookSelect(book));
   }
 
-  search(q: string, limit = 50, offset = 0) {
+  search(q: string, limit?: number, offset = 0) {
+    if (limit === undefined) {
+      const rows = this.database.sqlite
+        .prepare(
+          `
+          SELECT books.*
+          FROM book_fts
+          JOIN books ON books.id = book_fts.rowid
+          WHERE book_fts MATCH ?
+          ORDER BY bm25(book_fts)
+        `
+        )
+        .all(`${q.replace(/"/g, '""')}*`);
+      return (rows as Array<Record<string, unknown>>).map((row) => this.mapBookRow(row));
+    }
+
     const rows = this.database.sqlite
       .prepare(
         `
@@ -39,10 +59,86 @@ export class BooksService {
       `
       )
       .all(`${q.replace(/"/g, '""')}*`, limit, offset);
-    return (rows as Array<Record<string, unknown>>).map(mapBookRow);
+    return (rows as Array<Record<string, unknown>>).map((row) => this.mapBookRow(row));
   }
 
   get(id: number) {
+    return this.mapBookSelect(this.getRecord(id));
+  }
+
+  listSeries() {
+    return this.database.db.select().from(series).orderBy(series.title).all();
+  }
+
+  getSeries(id: number) {
+    const row = this.database.db.select().from(series).where(eq(series.id, id)).get();
+    if (!row) throw new NotFoundException("Series not found");
+    const seriesBooks = this.database.db
+      .select()
+      .from(books)
+      .where(eq(books.seriesId, id))
+      .orderBy(books.volumeNumber, books.title)
+      .all()
+      .map((book) => this.mapBookSelect(book));
+    return { ...row, books: seriesBooks };
+  }
+
+  streamFile(id: number, range?: string) {
+    const book = this.getRecord(id);
+    if (!existsSync(book.filePath)) {
+      throw new NotFoundException("Book file not found on disk");
+    }
+    const size = statSync(book.filePath).size;
+    const byteRange = parseByteRange(range, size);
+    const stream = createReadStream(book.filePath, { start: byteRange.start, end: byteRange.end });
+    return {
+      book,
+      stream,
+      contentType: bookContentType(book.format),
+      contentLength: byteRange.end - byteRange.start + 1,
+      size,
+      ...byteRange
+    };
+  }
+
+  streamCover(id: number) {
+    const book = this.getRecord(id);
+    if (!book.coverPath || !existsSync(book.coverPath)) {
+      throw new NotFoundException("Cover not found");
+    }
+    return { book, stream: createReadStream(book.coverPath), coverPath: book.coverPath };
+  }
+
+  async listComicPages(id: number) {
+    const book = this.getRecord(id);
+    this.assertComicArchiveBook(book);
+    const pages = book.format === "cbr" ? await listCbrImageEntries(book.filePath) : listCbzImageEntries(book.filePath);
+    return {
+      bookId: book.id,
+      pageCount: pages.length,
+      pages: pages.map((page, index) => ({ page: index + 1, name: page.name }))
+    };
+  }
+
+  async readComicPage(id: number, page: number) {
+    const book = this.getRecord(id);
+    this.assertComicArchiveBook(book);
+    try {
+      const result =
+        book.format === "cbr"
+          ? await readCbrPage(book.filePath, page, this.database.config.storageDir)
+          : readCbzPage(book.filePath, page);
+      return { book, page, contentType: lookupMime(result.entryName), data: result.data };
+    } catch (error) {
+      throw new NotFoundException(error instanceof Error ? error.message : "Comic page not found");
+    }
+  }
+
+  count() {
+    return this.database.db.select({ count: sql<number>`count(*)` }).from(books).get()?.count ?? 0;
+  }
+
+  private getRecord(id: number): typeof books.$inferSelect {
     const book = this.database.db.select().from(books).where(eq(books.id, id)).get();
     if (!book) {
       throw new NotFoundException("Book not found");
@@ -50,48 +146,121 @@ export class BooksService {
     return book;
   }
 
-  streamFile(id: number) {
-    const book = this.get(id);
+  private assertComicArchiveBook(book: typeof books.$inferSelect): void {
+    if (book.format !== "cbz" && book.format !== "cbr") {
+      throw new BadRequestException("Book is not a comic archive");
+    }
     if (!existsSync(book.filePath)) {
       throw new NotFoundException("Book file not found on disk");
     }
-    return { book, stream: createReadStream(book.filePath) };
   }
 
-  streamCover(id: number) {
-    const book = this.get(id);
-    if (!book.coverPath || !existsSync(book.coverPath)) {
-      throw new NotFoundException("Cover not found");
-    }
-    return { book, stream: createReadStream(book.coverPath), coverPath: book.coverPath };
+  private mapBookRow(row: Record<string, unknown>) {
+    const seriesId = nullable(row.series_id);
+    return {
+      id: Number(row.id),
+      libraryId: Number(row.library_id),
+      seriesId: seriesId ? Number(seriesId) : null,
+      title: String(row.title),
+      author: nullable(row.author),
+      description: nullable(row.description),
+      isbn: nullable(row.isbn),
+      isbn13: nullable(row.isbn13),
+      language: nullable(row.language),
+      publisher: nullable(row.publisher),
+      publishedDate: normalizePublishedDate(nullable(row.published_date)),
+      volumeNumber: row.volume_number === null || row.volume_number === undefined ? null : Number(row.volume_number),
+      volumeLabel: nullable(row.volume_label),
+      format: row.format,
+      filePath: String(row.file_path),
+      coverPath: nullable(row.cover_path),
+      metadataStatus: metadataStatusValue(row.metadata_status),
+      metadataProvenance: parseObject(row.metadata_provenance_json),
+      series: seriesId ? this.getSeriesRecord(Number(seriesId)) : null,
+      scanStatus: statusValue(row.scan_status),
+      enrichmentStatus: statusValue(row.enrichment_status),
+      fileSize: Number(row.file_size),
+      fileMtime: String(row.file_mtime),
+      createdAt: String(row.created_at),
+      updatedAt: String(row.updated_at)
+    };
   }
 
-  count() {
-    return this.database.db.select({ count: sql<number>`count(*)` }).from(books).get()?.count ?? 0;
+  private mapBookSelect(row: typeof books.$inferSelect) {
+    const { metadataProvenanceJson: _metadataProvenanceJson, ...book } = row;
+    return {
+      ...book,
+      publishedDate: normalizePublishedDate(row.publishedDate),
+      metadataProvenance: parseObject(row.metadataProvenanceJson),
+      series: row.seriesId ? this.getSeriesRecord(row.seriesId) : null
+    };
+  }
+
+  private getSeriesRecord(id: number) {
+    return this.database.db.select().from(series).where(eq(series.id, id)).get() ?? null;
   }
 }
 
-function mapBookRow(row: Record<string, unknown>) {
-  return {
-    id: Number(row.id),
-    libraryId: Number(row.library_id),
-    title: String(row.title),
-    author: nullable(row.author),
-    description: nullable(row.description),
-    isbn: nullable(row.isbn),
-    language: nullable(row.language),
-    publisher: nullable(row.publisher),
-    publishedDate: nullable(row.published_date),
-    format: row.format,
-    filePath: String(row.file_path),
-    coverPath: nullable(row.cover_path),
-    fileSize: Number(row.file_size),
-    fileMtime: String(row.file_mtime),
-    createdAt: String(row.created_at),
-    updatedAt: String(row.updated_at)
-  };
+function parseByteRange(range: string | undefined, size: number): { start: number; end: number; partial: boolean } {
+  if (!range) return { start: 0, end: Math.max(size - 1, 0), partial: false };
+  const match = range.match(/^bytes=(\d*)-(\d*)$/);
+  if (!match || size <= 0) {
+    throw new HttpException("Requested range not satisfiable", HttpStatus.REQUESTED_RANGE_NOT_SATISFIABLE);
+  }
+
+  const [, rawStart, rawEnd] = match;
+  let start: number;
+  let end: number;
+  if (!rawStart && rawEnd) {
+    const suffixLength = Number(rawEnd);
+    start = Math.max(size - suffixLength, 0);
+    end = size - 1;
+  } else {
+    start = Number(rawStart);
+    end = rawEnd ? Number(rawEnd) : size - 1;
+  }
+  if (!Number.isInteger(start) || !Number.isInteger(end) || start < 0 || end < start || start >= size) {
+    throw new HttpException("Requested range not satisfiable", HttpStatus.REQUESTED_RANGE_NOT_SATISFIABLE);
+  }
+  return { start, end: Math.min(end, size - 1), partial: true };
+}
+
+function bookContentType(format: string): string {
+  if (format === "epub") return "application/epub+zip";
+  if (format === "pdf") return "application/pdf";
+  if (format === "cbz") return "application/vnd.comicbook+zip";
+  if (format === "cbr") return "application/vnd.comicbook-rar";
+  return "application/octet-stream";
+}
+
+function lookupMime(entryName: string): string {
+  const extension = extname(entryName).toLowerCase();
+  if (extension === ".png") return "image/png";
+  if (extension === ".webp") return "image/webp";
+  if (extension === ".gif") return "image/gif";
+  if (extension === ".avif") return "image/avif";
+  return "image/jpeg";
 }
 
 function nullable(value: unknown): string | null {
   return value === null || value === undefined ? null : String(value);
 }
+
+function statusValue(value: unknown): "idle" | "running" | "succeeded" | "failed" {
+  return value === "running" || value === "succeeded" || value === "failed" ? value : "idle";
+}
+
+function metadataStatusValue(value: unknown): "enriched" | "partial" | "none" {
+  return value === "enriched" || value === "partial" ? value : "none";
+}
+
+function parseObject(value: unknown): Record<string, string> {
+  if (typeof value !== "string") return {};
+  try {
+    const parsed = JSON.parse(value) as unknown;
+    if (!parsed || typeof parsed !== "object" || Array.isArray(parsed)) return {};
+    return Object.fromEntries(Object.entries(parsed).filter((entry): entry is [string, string] => typeof entry[1] === "string"));
+  } catch {
+    return {};
+  }
+}

apps/api/src/books/series.controller.ts

@@ -0,0 +1,19 @@
+import { Controller, Get, Param, UseGuards } from "@nestjs/common";
+import { AuthGuard } from "../auth/auth.guard.js";
+import { BooksService } from "./books.service.js";
+
+@Controller("series")
+@UseGuards(AuthGuard)
+export class SeriesController {
+  constructor(private readonly books: BooksService) {}
+
+  @Get()
+  list() {
+    return this.books.listSeries();
+  }
+
+  @Get(":id")
+  get(@Param("id") id: string) {
+    return this.books.getSeries(Number(id));
+  }
+}

apps/api/src/common/cbr.ts

@@ -0,0 +1,64 @@
+import { mkdirSync, mkdtempSync, readFileSync, rmSync } from "node:fs";
+import { extname, join } from "node:path";
+import { createExtractorFromFile } from "node-unrar-js";
+import { COMIC_IMAGE_EXTENSIONS, MAX_COMIC_ARCHIVE_ENTRIES } from "./cbz.js";
+import type { CbzPageEntry } from "./cbz.js";
+
+export async function listCbrImageEntries(filePath: string): Promise<CbzPageEntry[]> {
+  const extractor = await createExtractorFromFile({ filepath: filePath });
+  const list = extractor.getFileList();
+  if (list.arcHeader.flags.volume) {
+    throw new Error("Multi-volume CBR archives are not supported");
+  }
+  if (list.arcHeader.flags.headerEncrypted) {
+    throw new Error("Encrypted CBR archives are not supported");
+  }
+
+  const headers = [...list.fileHeaders];
+  if (headers.length > MAX_COMIC_ARCHIVE_ENTRIES) {
+    throw new Error("CBR archive has too many entries");
+  }
+
+  const images = headers
+    .filter((header) => !header.flags.directory && !header.flags.encrypted)
+    .filter((header) => COMIC_IMAGE_EXTENSIONS.has(extname(header.name).toLowerCase()))
+    .map((header) => ({ entryName: header.name, name: header.name.split(/[\\/]/).pop() ?? header.name }))
+    .sort((a, b) => a.entryName.localeCompare(b.entryName, undefined, { numeric: true, sensitivity: "base" }));
+
+  if (!images.length) {
+    throw new Error("CBR archive does not contain readable image pages");
+  }
+
+  return images;
+}
+
+export async function readCbrPage(
+  filePath: string,
+  pageNumber: number,
+  storageDir: string
+): Promise<{ entryName: string; data: Buffer }> {
+  if (!Number.isInteger(pageNumber) || pageNumber < 1) {
+    throw new Error("CBR page number must be a positive integer");
+  }
+  const pages = await listCbrImageEntries(filePath);
+  const page = pages[pageNumber - 1];
+  if (!page) {
+    throw new Error("CBR page not found");
+  }
+
+  mkdirSync(storageDir, { recursive: true });
+  const tempDir = mkdtempSync(join(storageDir, "cbr-page-"));
+  const safeName = `page${extname(page.entryName).toLowerCase() || ".jpg"}`;
+  try {
+    const extractor = await createExtractorFromFile({
+      filepath: filePath,
+      targetPath: tempDir,
+      filenameTransform: () => safeName
+    });
+    const extracted = extractor.extract({ files: [page.entryName] });
+    [...extracted.files];
+    return { entryName: page.entryName, data: readFileSync(join(tempDir, safeName)) };
+  } finally {
+    rmSync(tempDir, { recursive: true, force: true });
+  }
+}

apps/api/src/common/cbz.ts

@@ -0,0 +1,46 @@
+import { extname } from "node:path";
+import AdmZip from "adm-zip";
+
+export type CbzPageEntry = {
+  entryName: string;
+  name: string;
+};
+
+export const COMIC_IMAGE_EXTENSIONS = new Set([".jpg", ".jpeg", ".png", ".webp", ".gif", ".avif"]);
+export const MAX_COMIC_ARCHIVE_ENTRIES = 20000;
+
+export function listCbzImageEntries(filePath: string): CbzPageEntry[] {
+  const zip = new AdmZip(filePath);
+  const entries = zip.getEntries();
+  if (entries.length > MAX_COMIC_ARCHIVE_ENTRIES) {
+    throw new Error("CBZ archive has too many entries");
+  }
+
+  const images = entries
+    .filter((entry) => !entry.isDirectory && COMIC_IMAGE_EXTENSIONS.has(extname(entry.entryName).toLowerCase()))
+    .map((entry) => ({ entryName: entry.entryName, name: entry.name }))
+    .sort((a, b) => a.entryName.localeCompare(b.entryName, undefined, { numeric: true, sensitivity: "base" }));
+
+  if (!images.length) {
+    throw new Error("CBZ archive does not contain readable image pages");
+  }
+
+  return images;
+}
+
+export function readCbzPage(filePath: string, pageNumber: number): { entryName: string; data: Buffer } {
+  if (!Number.isInteger(pageNumber) || pageNumber < 1) {
+    throw new Error("CBZ page number must be a positive integer");
+  }
+  const zip = new AdmZip(filePath);
+  const pages = listCbzImageEntries(filePath);
+  const page = pages[pageNumber - 1];
+  if (!page) {
+    throw new Error("CBZ page not found");
+  }
+  const entry = zip.getEntry(page.entryName);
+  if (!entry) {
+    throw new Error("CBZ page not found");
+  }
+  return { entryName: entry.entryName, data: entry.getData() };
+}

apps/api/src/config/env.ts

@@ -11,8 +11,15 @@ export type AppConfig = {
   cookieName: string;
   cookieSecure: boolean;
   openLibraryEnabled: boolean;
+  libraryPathAliases: Array<{ from: string; to: string }>;
+  initialAdminEmail: string;
+  initialAdminPassword: string;
+  initialAdminPasswordIsDefault: boolean;
 };
 
+const DEFAULT_INITIAL_ADMIN_EMAIL = "admin@readabook.local";
+const DEFAULT_INITIAL_ADMIN_PASSWORD = "readabook-admin-change-me";
+
 export function loadConfig(): AppConfig {
   const databasePath = resolve(process.env.DATABASE_PATH ?? "./data/readabook.sqlite");
   const storageDir = resolve(process.env.STORAGE_DIR ?? "./data/storage");
@@ -29,6 +36,26 @@ export function loadConfig(): AppConfig {
     jwtSecret: process.env.JWT_SECRET ?? "dev-change-me-readabook",
     cookieName: process.env.AUTH_COOKIE_NAME ?? "readabook_session",
     cookieSecure: process.env.COOKIE_SECURE === "true",
-    openLibraryEnabled: process.env.OPEN_LIBRARY_ENABLED !== "false"
+    openLibraryEnabled: process.env.OPEN_LIBRARY_ENABLED !== "false",
+    libraryPathAliases: parseLibraryPathAliases(process.env.LIBRARY_PATH_ALIASES),
+    initialAdminEmail: process.env.INITIAL_ADMIN_EMAIL ?? DEFAULT_INITIAL_ADMIN_EMAIL,
+    initialAdminPassword: process.env.INITIAL_ADMIN_PASSWORD ?? DEFAULT_INITIAL_ADMIN_PASSWORD,
+    initialAdminPasswordIsDefault: !process.env.INITIAL_ADMIN_PASSWORD
   };
 }
+
+function parseLibraryPathAliases(value: string | undefined): Array<{ from: string; to: string }> {
+  if (!value) return [];
+  return value
+    .split(";")
+    .map((entry) => entry.trim())
+    .filter(Boolean)
+    .map((entry) => {
+      const separator = entry.indexOf("=");
+      if (separator === -1) return null;
+      const from = entry.slice(0, separator).trim();
+      const to = entry.slice(separator + 1).trim();
+      return from && to ? { from, to } : null;
+    })
+    .filter((entry): entry is { from: string; to: string } => Boolean(entry));
+}

apps/api/src/database/database.service.test.ts

@@ -0,0 +1,243 @@
+import Database from "better-sqlite3";
+import { mkdtempSync, rmSync } from "node:fs";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
+import { afterEach, describe, expect, it } from "vitest";
+import { DatabaseService } from "./database.service.js";
+import { books, libraries, series } from "./schema.js";
+
+const previousDatabasePath = process.env.DATABASE_PATH;
+const previousStorageDir = process.env.STORAGE_DIR;
+const tempDirs: string[] = [];
+
+afterEach(() => {
+  process.env.DATABASE_PATH = previousDatabasePath;
+  process.env.STORAGE_DIR = previousStorageDir;
+  for (const dir of tempDirs.splice(0)) {
+    rmSync(dir, { recursive: true, force: true });
+  }
+});
+
+describe("database migrations", () => {
+  it.runIf(canLoadBetterSqlite())("adds metadata columns to an existing comic-capable books table before creating dependent indexes", () => {
+    const dir = mkdtempSync(join(tmpdir(), "readabook-migration-"));
+    tempDirs.push(dir);
+    const databasePath = join(dir, "readabook.sqlite");
+    const storageDir = join(dir, "storage");
+
+    const legacy = new Database(databasePath);
+    const now = new Date().toISOString();
+    legacy.exec(`
+      CREATE TABLE users (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        email TEXT NOT NULL UNIQUE,
+        name TEXT,
+        password_hash TEXT NOT NULL,
+        role TEXT NOT NULL DEFAULT 'user' CHECK (role IN ('admin','user')),
+        created_at TEXT NOT NULL,
+        updated_at TEXT NOT NULL
+      );
+
+      CREATE TABLE libraries (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        name TEXT NOT NULL,
+        path TEXT NOT NULL,
+        enabled INTEGER NOT NULL DEFAULT 1,
+        created_at TEXT NOT NULL,
+        updated_at TEXT NOT NULL
+      );
+
+      CREATE TABLE books (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        library_id INTEGER NOT NULL REFERENCES libraries(id) ON DELETE CASCADE,
+        title TEXT NOT NULL,
+        author TEXT,
+        description TEXT,
+        isbn TEXT,
+        language TEXT,
+        publisher TEXT,
+        published_date TEXT,
+        format TEXT NOT NULL CHECK (format IN ('epub','pdf','cbz','cbr')),
+        file_path TEXT NOT NULL UNIQUE,
+        cover_path TEXT,
+        file_size INTEGER NOT NULL,
+        file_mtime TEXT NOT NULL,
+        created_at TEXT NOT NULL,
+        updated_at TEXT NOT NULL
+      );
+
+      CREATE TABLE progress (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+        book_id INTEGER NOT NULL REFERENCES books(id) ON DELETE CASCADE,
+        locator TEXT NOT NULL,
+        percent INTEGER NOT NULL CHECK (percent >= 0 AND percent <= 100),
+        created_at TEXT NOT NULL,
+        updated_at TEXT NOT NULL,
+        UNIQUE(user_id, book_id)
+      );
+
+      CREATE TABLE jobs (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        type TEXT NOT NULL,
+        status TEXT NOT NULL CHECK (status IN ('queued','running','succeeded','failed')),
+        detail TEXT,
+        error TEXT,
+        created_at TEXT NOT NULL,
+        updated_at TEXT NOT NULL
+      );
+
+      INSERT INTO libraries (id, name, path, enabled, created_at, updated_at)
+      VALUES (1, 'Corpus', '/library', 1, '${now}', '${now}');
+      INSERT INTO books (
+        library_id, title, author, description, isbn, language, publisher, published_date,
+        format, file_path, cover_path, file_size, file_mtime, created_at, updated_at
+      )
+      VALUES
+        (1, 'Solo Leveling T03', NULL, NULL, NULL, NULL, NULL, NULL, 'cbz', '/library/Solo Leveling T03.cbz', NULL, 42, '${now}', '${now}', '${now}'),
+        (1, 'Eyeshield.21.T01.FRENCH.CBZ.eBook-ebdz', NULL, NULL, NULL, NULL, NULL, NULL, 'cbz', '/library/Eyeshield.21.T01.FRENCH.CBZ.eBook-ebdz.cbz', NULL, 42, '${now}', '${now}', '${now}'),
+        (1, 'Dragon.Ball.SD.T01.FRENCH.CBZ.eBook-Paprika+', NULL, NULL, NULL, NULL, NULL, NULL, 'cbz', '/library/Dragon.Ball.SD.T01.FRENCH.CBZ.eBook-Paprika+.cbz', NULL, 42, '${now}', '${now}', '${now}');
+    `);
+    legacy.close();
+
+    process.env.DATABASE_PATH = databasePath;
+    process.env.STORAGE_DIR = storageDir;
+
+    const database = new DatabaseService();
+    const bookColumns = database.sqlite.prepare("PRAGMA table_info(books)").all() as Array<{ name: string }>;
+    const bookIndexes = database.sqlite.prepare("PRAGMA index_list(books)").all() as Array<{ name: string }>;
+    const metadataSources = database.sqlite.prepare("SELECT provider FROM metadata_source_config ORDER BY priority").all() as Array<{ provider: string }>;
+    const seriesRows = database.sqlite
+      .prepare(
+        `
+        SELECT books.title, books.volume_number, books.volume_label, series.title AS series_title, series.normalized_title
+        FROM books
+        JOIN series ON series.id = books.series_id
+        ORDER BY books.title
+      `
+      )
+      .all() as Array<{
+      title: string;
+      volume_number: number | null;
+      volume_label: string | null;
+      series_title: string;
+      normalized_title: string;
+    }>;
+    const automationSettings = database.sqlite.prepare("SELECT id, isbn_priority_enabled FROM automation_settings").get() as
+      | { id: number; isbn_priority_enabled: number }
+      | undefined;
+
+    expect(bookColumns.map((column) => column.name)).toContain("isbn13");
+    expect(bookColumns.map((column) => column.name)).toContain("identifiers_json");
+    expect(bookColumns.map((column) => column.name)).toContain("scan_status");
+    expect(bookColumns.map((column) => column.name)).toContain("enrichment_status");
+    expect(bookColumns.map((column) => column.name)).toContain("series_id");
+    expect(bookColumns.map((column) => column.name)).toContain("volume_number");
+    expect(bookColumns.map((column) => column.name)).toContain("volume_label");
+    expect(bookIndexes.map((index) => index.name)).toContain("books_isbn13_idx");
+    expect(bookIndexes.map((index) => index.name)).toContain("books_series_idx");
+    expect(seriesRows).toEqual([
+      {
+        title: "Dragon.Ball.SD.T01.FRENCH.CBZ.eBook-Paprika+",
+        volume_number: 1,
+        volume_label: "T01",
+        series_title: "Dragon Ball SD",
+        normalized_title: "dragon ball sd"
+      },
+      {
+        title: "Eyeshield.21.T01.FRENCH.CBZ.eBook-ebdz",
+        volume_number: 1,
+        volume_label: "T01",
+        series_title: "Eyeshield 21",
+        normalized_title: "eyeshield 21"
+      },
+      {
+        title: "Solo Leveling T03",
+        volume_number: 3,
+        volume_label: "T03",
+        series_title: "Solo Leveling",
+        normalized_title: "solo leveling"
+      }
+    ]);
+    expect(metadataSources.map((source) => source.provider)).toEqual(["local", "openlibrary", "googlebooks", "bnf", "mangadex", "comicvine"]);
+    expect(automationSettings).toMatchObject({ id: 1, isbn_priority_enabled: 1 });
+
+    database.onModuleDestroy();
+  });
+
+  it.runIf(canLoadBetterSqlite())("backfills missing Daredevil volume numbers when series already exists", () => {
+    const dir = mkdtempSync(join(tmpdir(), "readabook-series-backfill-"));
+    tempDirs.push(dir);
+    process.env.DATABASE_PATH = join(dir, "readabook.sqlite");
+    process.env.STORAGE_DIR = join(dir, "storage");
+
+    const first = new DatabaseService();
+    const now = first.now();
+    const library = first.db
+      .insert(libraries)
+      .values({ name: "Corpus", path: "/library", enabled: true, createdAt: now, updatedAt: now })
+      .returning()
+      .get();
+    const daredevil = first.db
+      .insert(series)
+      .values({
+        title: "Daredevil",
+        normalizedTitle: "daredevil",
+        description: null,
+        publisher: null,
+        createdAt: now,
+        updatedAt: now
+      })
+      .returning()
+      .get();
+    first.db
+      .insert(books)
+      .values({
+        libraryId: library.id,
+        seriesId: daredevil.id,
+        title: "Daredevil",
+        author: null,
+        description: null,
+        isbn: null,
+        isbn13: null,
+        identifiersJson: null,
+        localMetadataJson: null,
+        language: null,
+        publisher: null,
+        publishedDate: null,
+        volumeNumber: null,
+        volumeLabel: null,
+        format: "cbz",
+        filePath: "/library/Daredevil - 001[Sebmov].cbz",
+        coverPath: null,
+        metadataStatus: "none",
+        metadataProvenanceJson: JSON.stringify({ title: "local" }),
+        scanStatus: "succeeded",
+        enrichmentStatus: "idle",
+        fileSize: 42,
+        fileMtime: now,
+        createdAt: now,
+        updatedAt: now
+      })
+      .run();
+    first.onModuleDestroy();
+
+    const second = new DatabaseService();
+    const row = second.sqlite.prepare("SELECT volume_number, volume_label FROM books WHERE file_path = ?").get(
+      "/library/Daredevil - 001[Sebmov].cbz"
+    ) as { volume_number: number | null; volume_label: string | null };
+
+    expect(row).toEqual({ volume_number: 1, volume_label: "001" });
+
+    second.onModuleDestroy();
+  });
+});
+
+function canLoadBetterSqlite(): boolean {
+  try {
+    new Database(":memory:").close();
+    return true;
+  } catch {
+    return false;
+  }
+}

apps/api/src/database/database.service.ts

@@ -2,6 +2,7 @@ import { Injectable, OnModuleDestroy } from "@nestjs/common";
 import Database from "better-sqlite3";
 import { BetterSQLite3Database, drizzle } from "drizzle-orm/better-sqlite3";
 import { AppConfig, loadConfig } from "../config/env.js";
+import { extractSeriesVolume } from "../metadata/use-cases/extract-series-volume.js";
 import * as schema from "./schema.js";
 
 @Injectable()
@@ -49,19 +50,39 @@ export class DatabaseService implements OnModuleDestroy {
         updated_at TEXT NOT NULL
       );
 
+      CREATE TABLE IF NOT EXISTS series (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        title TEXT NOT NULL,
+        normalized_title TEXT NOT NULL UNIQUE,
+        description TEXT,
+        publisher TEXT,
+        created_at TEXT NOT NULL,
+        updated_at TEXT NOT NULL
+      );
+
       CREATE TABLE IF NOT EXISTS books (
         id INTEGER PRIMARY KEY AUTOINCREMENT,
         library_id INTEGER NOT NULL REFERENCES libraries(id) ON DELETE CASCADE,
+        series_id INTEGER REFERENCES series(id) ON DELETE SET NULL,
         title TEXT NOT NULL,
         author TEXT,
         description TEXT,
         isbn TEXT,
+        isbn13 TEXT,
+        identifiers_json TEXT,
+        local_metadata_json TEXT,
         language TEXT,
         publisher TEXT,
         published_date TEXT,
-        format TEXT NOT NULL CHECK (format IN ('epub','pdf')),
+        volume_number INTEGER,
+        volume_label TEXT,
+        format TEXT NOT NULL CHECK (format IN ('epub','pdf','cbz','cbr')),
         file_path TEXT NOT NULL UNIQUE,
         cover_path TEXT,
+        metadata_status TEXT NOT NULL DEFAULT 'none' CHECK (metadata_status IN ('enriched','partial','none')),
+        metadata_provenance_json TEXT,
+        scan_status TEXT NOT NULL DEFAULT 'idle' CHECK (scan_status IN ('idle','running','succeeded','failed')),
+        enrichment_status TEXT NOT NULL DEFAULT 'idle' CHECK (enrichment_status IN ('idle','running','succeeded','failed')),
         file_size INTEGER NOT NULL,
         file_mtime TEXT NOT NULL,
         created_at TEXT NOT NULL,
@@ -89,6 +110,26 @@ export class DatabaseService implements OnModuleDestroy {
         updated_at TEXT NOT NULL
       );
 
+      CREATE TABLE IF NOT EXISTS metadata_source_config (
+        provider TEXT PRIMARY KEY CHECK (provider IN ('local','openlibrary','googlebooks','bnf','mangadex','comicvine')),
+        enabled INTEGER NOT NULL DEFAULT 1,
+        priority INTEGER NOT NULL,
+        api_key TEXT,
+        created_at TEXT NOT NULL,
+        updated_at TEXT NOT NULL
+      );
+
+      CREATE TABLE IF NOT EXISTS automation_settings (
+        id INTEGER PRIMARY KEY CHECK (id = 1),
+        watch_libraries INTEGER NOT NULL DEFAULT 0,
+        auto_enrich_new_books INTEGER NOT NULL DEFAULT 1,
+        isbn_priority_enabled INTEGER NOT NULL DEFAULT 1,
+        scan_schedule_json TEXT NOT NULL,
+        enrich_schedule_json TEXT NOT NULL,
+        created_at TEXT NOT NULL,
+        updated_at TEXT NOT NULL
+      );
+
       CREATE VIRTUAL TABLE IF NOT EXISTS book_fts USING fts5(
         title,
         author,
@@ -119,6 +160,333 @@ export class DatabaseService implements OnModuleDestroy {
         VALUES (new.id, new.title, new.author, new.description, new.isbn);
       END;
     `);
+    this.ensureBooksSupportsComicArchives();
+    this.sqlite.exec("INSERT INTO book_fts(book_fts) VALUES('rebuild')");
+    this.ensureBooksMetadataColumns();
+    this.ensureSeriesModel();
+    this.ensureReaderPreferencesTable();
+    this.ensureMetadataSourceConfigSupportsComicProviders();
+    this.ensureMetadataSourceConfigColumns();
+    this.ensureAutomationSettingsColumns();
+    this.ensureMetadataDefaults();
     this.sqlite.exec("INSERT INTO book_fts(book_fts) VALUES('rebuild')");
   }
+
+  private ensureBooksSupportsComicArchives(): void {
+    const table = this.sqlite
+      .prepare("SELECT sql FROM sqlite_master WHERE type = 'table' AND name = 'books'")
+      .get() as { sql?: string } | undefined;
+    if (!table?.sql || (table.sql.includes("'cbz'") && table.sql.includes("'cbr'"))) return;
+
+    this.sqlite.exec(`
+      PRAGMA foreign_keys = OFF;
+      PRAGMA legacy_alter_table = ON;
+
+      DROP TRIGGER IF EXISTS books_ai;
+      DROP TRIGGER IF EXISTS books_ad;
+      DROP TRIGGER IF EXISTS books_au;
+
+      BEGIN;
+        ALTER TABLE books RENAME TO books_legacy_format;
+        CREATE TABLE books (
+          id INTEGER PRIMARY KEY AUTOINCREMENT,
+          library_id INTEGER NOT NULL REFERENCES libraries(id) ON DELETE CASCADE,
+          series_id INTEGER REFERENCES series(id) ON DELETE SET NULL,
+          title TEXT NOT NULL,
+          author TEXT,
+          description TEXT,
+          isbn TEXT,
+          isbn13 TEXT,
+          identifiers_json TEXT,
+          local_metadata_json TEXT,
+          language TEXT,
+          publisher TEXT,
+          published_date TEXT,
+          volume_number INTEGER,
+          volume_label TEXT,
+          format TEXT NOT NULL CHECK (format IN ('epub','pdf','cbz','cbr')),
+          file_path TEXT NOT NULL UNIQUE,
+          cover_path TEXT,
+          metadata_status TEXT NOT NULL DEFAULT 'none' CHECK (metadata_status IN ('enriched','partial','none')),
+          metadata_provenance_json TEXT,
+          scan_status TEXT NOT NULL DEFAULT 'idle' CHECK (scan_status IN ('idle','running','succeeded','failed')),
+          enrichment_status TEXT NOT NULL DEFAULT 'idle' CHECK (enrichment_status IN ('idle','running','succeeded','failed')),
+          file_size INTEGER NOT NULL,
+          file_mtime TEXT NOT NULL,
+          created_at TEXT NOT NULL,
+          updated_at TEXT NOT NULL
+        );
+        INSERT INTO books (
+          id, library_id, title, author, description, isbn, isbn13, identifiers_json, local_metadata_json, language, publisher, published_date,
+          volume_number, volume_label, format, file_path, cover_path, metadata_status, metadata_provenance_json, scan_status, enrichment_status, file_size, file_mtime, created_at, updated_at
+        )
+        SELECT
+          id, library_id, title, author, description, isbn, NULL, NULL, NULL, language, publisher, published_date,
+          NULL, NULL,
+          format, file_path, cover_path, CASE WHEN cover_path IS NOT NULL OR author IS NOT NULL OR description IS NOT NULL OR isbn IS NOT NULL THEN 'partial' ELSE 'none' END, NULL,
+          'idle', 'idle', file_size, file_mtime, created_at, updated_at
+        FROM books_legacy_format;
+        DROP TABLE books_legacy_format;
+      COMMIT;
+
+      PRAGMA legacy_alter_table = OFF;
+      PRAGMA foreign_keys = ON;
+
+      CREATE UNIQUE INDEX IF NOT EXISTS books_file_path_unique ON books(file_path);
+      CREATE INDEX IF NOT EXISTS books_library_idx ON books(library_id);
+      CREATE INDEX IF NOT EXISTS books_title_idx ON books(title);
+      CREATE INDEX IF NOT EXISTS books_isbn13_idx ON books(isbn13);
+
+      CREATE TRIGGER IF NOT EXISTS books_ai AFTER INSERT ON books BEGIN
+        INSERT INTO book_fts(rowid, title, author, description, isbn)
+        VALUES (new.id, new.title, new.author, new.description, new.isbn);
+      END;
+
+      CREATE TRIGGER IF NOT EXISTS books_ad AFTER DELETE ON books BEGIN
+        INSERT INTO book_fts(book_fts, rowid, title, author, description, isbn)
+        VALUES('delete', old.id, old.title, old.author, old.description, old.isbn);
+      END;
+
+      CREATE TRIGGER IF NOT EXISTS books_au AFTER UPDATE ON books BEGIN
+        INSERT INTO book_fts(book_fts, rowid, title, author, description, isbn)
+        VALUES('delete', old.id, old.title, old.author, old.description, old.isbn);
+        INSERT INTO book_fts(rowid, title, author, description, isbn)
+        VALUES (new.id, new.title, new.author, new.description, new.isbn);
+      END;
+    `);
+  }
+
+  private ensureBooksMetadataColumns(): void {
+    const columns = this.sqlite.prepare("PRAGMA table_info(books)").all() as Array<{ name: string }>;
+    const names = new Set(columns.map((column) => column.name));
+    if (!names.has("isbn13")) {
+      this.sqlite.exec("ALTER TABLE books ADD COLUMN isbn13 TEXT");
+    }
+    if (!names.has("identifiers_json")) {
+      this.sqlite.exec("ALTER TABLE books ADD COLUMN identifiers_json TEXT");
+    }
+    if (!names.has("local_metadata_json")) {
+      this.sqlite.exec("ALTER TABLE books ADD COLUMN local_metadata_json TEXT");
+    }
+    if (!names.has("metadata_status")) {
+      this.sqlite.exec("ALTER TABLE books ADD COLUMN metadata_status TEXT NOT NULL DEFAULT 'none'");
+      this.sqlite.exec(`
+        UPDATE books
+        SET metadata_status = CASE
+          WHEN cover_path IS NOT NULL AND (author IS NOT NULL OR description IS NOT NULL OR isbn IS NOT NULL) THEN 'enriched'
+          WHEN cover_path IS NOT NULL OR author IS NOT NULL OR description IS NOT NULL OR isbn IS NOT NULL THEN 'partial'
+          ELSE 'none'
+        END
+      `);
+    }
+    if (!names.has("metadata_provenance_json")) {
+      this.sqlite.exec("ALTER TABLE books ADD COLUMN metadata_provenance_json TEXT");
+    }
+    if (!names.has("scan_status")) {
+      this.sqlite.exec("ALTER TABLE books ADD COLUMN scan_status TEXT NOT NULL DEFAULT 'idle'");
+    }
+    if (!names.has("enrichment_status")) {
+      this.sqlite.exec("ALTER TABLE books ADD COLUMN enrichment_status TEXT NOT NULL DEFAULT 'idle'");
+    }
+    if (!names.has("series_id")) {
+      this.sqlite.exec("ALTER TABLE books ADD COLUMN series_id INTEGER REFERENCES series(id) ON DELETE SET NULL");
+    }
+    if (!names.has("volume_number")) {
+      this.sqlite.exec("ALTER TABLE books ADD COLUMN volume_number INTEGER");
+    }
+    if (!names.has("volume_label")) {
+      this.sqlite.exec("ALTER TABLE books ADD COLUMN volume_label TEXT");
+    }
+    this.sqlite.exec(`
+      UPDATE books
+      SET published_date = NULL
+      WHERE published_date IS NOT NULL
+        AND (
+          trim(published_date) = '0000'
+          OR substr(trim(published_date), 1, 10) IN ('0001-01-01', '0101-01-01', '1970-01-01')
+          OR CAST(substr(trim(published_date), 1, 4) AS INTEGER) < 1500
+          OR CAST(substr(trim(published_date), 1, 4) AS INTEGER) > 2027
+        )
+    `);
+    this.sqlite.exec("CREATE INDEX IF NOT EXISTS books_isbn13_idx ON books(isbn13)");
+    this.sqlite.exec("CREATE INDEX IF NOT EXISTS books_local_metadata_idx ON books(local_metadata_json)");
+    this.sqlite.exec("CREATE INDEX IF NOT EXISTS books_series_idx ON books(series_id)");
+  }
+
+  private ensureSeriesModel(): void {
+    this.sqlite.exec(`
+      CREATE TABLE IF NOT EXISTS series (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        title TEXT NOT NULL,
+        normalized_title TEXT NOT NULL UNIQUE,
+        description TEXT,
+        publisher TEXT,
+        created_at TEXT NOT NULL,
+        updated_at TEXT NOT NULL
+      );
+      CREATE UNIQUE INDEX IF NOT EXISTS series_normalized_title_unique ON series(normalized_title);
+      CREATE INDEX IF NOT EXISTS books_series_idx ON books(series_id);
+    `);
+    this.backfillSeries();
+  }
+
+  private backfillSeries(): void {
+    const rows = this.sqlite.prepare("SELECT id, title, file_path, series_id FROM books WHERE series_id IS NULL OR volume_number IS NULL").all() as Array<{
+      id: number;
+      title: string;
+      file_path: string;
+      series_id: number | null;
+    }>;
+    if (!rows.length) return;
+    const now = this.now();
+    const insertSeries = this.sqlite.prepare(`
+      INSERT INTO series (title, normalized_title, description, publisher, created_at, updated_at)
+      VALUES (?, ?, NULL, NULL, ?, ?)
+      ON CONFLICT(normalized_title) DO UPDATE SET title = excluded.title, updated_at = excluded.updated_at
+      RETURNING id
+    `);
+    const updateBook = this.sqlite.prepare("UPDATE books SET series_id = ?, volume_number = ?, volume_label = ? WHERE id = ?");
+    const transaction = this.sqlite.transaction(() => {
+      for (const row of rows) {
+        const parsed = extractSeriesVolume(row.title, row.file_path);
+        if (row.series_id !== null && parsed.volumeNumber === null) continue;
+        const seriesId =
+          row.series_id ??
+          (insertSeries.get(parsed.seriesTitle, parsed.normalizedSeriesTitle, now, now) as { id: number }).id;
+        updateBook.run(seriesId, parsed.volumeNumber, parsed.volumeLabel, row.id);
+      }
+    });
+    transaction();
+  }
+
+  private ensureReaderPreferencesTable(): void {
+    this.sqlite.exec(`
+      CREATE TABLE IF NOT EXISTS reader_preferences (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+        book_id INTEGER NOT NULL REFERENCES books(id) ON DELETE CASCADE,
+        mode TEXT NOT NULL CHECK (mode IN ('paged','scrolled','horizontal','vertical')),
+        fit TEXT CHECK (fit IN ('page','width','height','auto')),
+        created_at TEXT NOT NULL,
+        updated_at TEXT NOT NULL,
+        UNIQUE(user_id, book_id)
+      );
+      CREATE INDEX IF NOT EXISTS reader_preferences_user_idx ON reader_preferences(user_id);
+    `);
+  }
+
+  private ensureMetadataSourceConfigColumns(): void {
+    const names = this.columnNames("metadata_source_config");
+    const now = sqlString(this.now());
+    if (!names.has("enabled")) {
+      this.sqlite.exec("ALTER TABLE metadata_source_config ADD COLUMN enabled INTEGER NOT NULL DEFAULT 1");
+    }
+    if (!names.has("priority")) {
+      this.sqlite.exec("ALTER TABLE metadata_source_config ADD COLUMN priority INTEGER NOT NULL DEFAULT 0");
+    }
+    if (!names.has("api_key")) {
+      this.sqlite.exec("ALTER TABLE metadata_source_config ADD COLUMN api_key TEXT");
+    }
+    if (!names.has("created_at")) {
+      this.sqlite.exec(`ALTER TABLE metadata_source_config ADD COLUMN created_at TEXT NOT NULL DEFAULT ${now}`);
+    }
+    if (!names.has("updated_at")) {
+      this.sqlite.exec(`ALTER TABLE metadata_source_config ADD COLUMN updated_at TEXT NOT NULL DEFAULT ${now}`);
+    }
+  }
+
+  private ensureMetadataSourceConfigSupportsComicProviders(): void {
+    const table = this.sqlite
+      .prepare("SELECT sql FROM sqlite_master WHERE type = 'table' AND name = 'metadata_source_config'")
+      .get() as { sql?: string } | undefined;
+    if (!table?.sql || (table.sql.includes("'mangadex'") && table.sql.includes("'comicvine'"))) return;
+
+    this.sqlite.exec(`
+      BEGIN;
+        ALTER TABLE metadata_source_config RENAME TO metadata_source_config_legacy_provider;
+        CREATE TABLE metadata_source_config (
+          provider TEXT PRIMARY KEY CHECK (provider IN ('local','openlibrary','googlebooks','bnf','mangadex','comicvine')),
+          enabled INTEGER NOT NULL DEFAULT 1,
+          priority INTEGER NOT NULL,
+          api_key TEXT,
+          created_at TEXT NOT NULL,
+          updated_at TEXT NOT NULL
+        );
+        INSERT INTO metadata_source_config (provider, enabled, priority, api_key, created_at, updated_at)
+        SELECT provider, enabled, priority, api_key, created_at, updated_at
+        FROM metadata_source_config_legacy_provider;
+        DROP TABLE metadata_source_config_legacy_provider;
+      COMMIT;
+    `);
+  }
+
+  private ensureAutomationSettingsColumns(): void {
+    const names = this.columnNames("automation_settings");
+    const now = sqlString(this.now());
+    const disabledScan = sqlString(JSON.stringify({ frequency: "disabled", time: "03:00", dayOfWeek: 1 }));
+    const disabledEnrich = sqlString(JSON.stringify({ frequency: "disabled", time: "04:00", dayOfWeek: 1 }));
+    if (!names.has("watch_libraries")) {
+      this.sqlite.exec("ALTER TABLE automation_settings ADD COLUMN watch_libraries INTEGER NOT NULL DEFAULT 0");
+    }
+    if (!names.has("auto_enrich_new_books")) {
+      this.sqlite.exec("ALTER TABLE automation_settings ADD COLUMN auto_enrich_new_books INTEGER NOT NULL DEFAULT 1");
+    }
+    if (!names.has("isbn_priority_enabled")) {
+      this.sqlite.exec("ALTER TABLE automation_settings ADD COLUMN isbn_priority_enabled INTEGER NOT NULL DEFAULT 1");
+    }
+    if (!names.has("scan_schedule_json")) {
+      this.sqlite.exec(`ALTER TABLE automation_settings ADD COLUMN scan_schedule_json TEXT NOT NULL DEFAULT ${disabledScan}`);
+    }
+    if (!names.has("enrich_schedule_json")) {
+      this.sqlite.exec(`ALTER TABLE automation_settings ADD COLUMN enrich_schedule_json TEXT NOT NULL DEFAULT ${disabledEnrich}`);
+    }
+    if (!names.has("created_at")) {
+      this.sqlite.exec(`ALTER TABLE automation_settings ADD COLUMN created_at TEXT NOT NULL DEFAULT ${now}`);
+    }
+    if (!names.has("updated_at")) {
+      this.sqlite.exec(`ALTER TABLE automation_settings ADD COLUMN updated_at TEXT NOT NULL DEFAULT ${now}`);
+    }
+  }
+
+  private columnNames(table: string): Set<string> {
+    const columns = this.sqlite.prepare(`PRAGMA table_info(${table})`).all() as Array<{ name: string }>;
+    return new Set(columns.map((column) => column.name));
+  }
+
+  private ensureMetadataDefaults(): void {
+    const now = this.now();
+    const insertSource = this.sqlite.prepare(`
+      INSERT INTO metadata_source_config (provider, enabled, priority, api_key, created_at, updated_at)
+      VALUES (?, ?, ?, NULL, ?, ?)
+      ON CONFLICT(provider) DO NOTHING
+    `);
+    insertSource.run("local", 1, 0, now, now);
+    insertSource.run("openlibrary", this.config.openLibraryEnabled ? 1 : 0, 1, now, now);
+    insertSource.run("googlebooks", 0, 2, now, now);
+    insertSource.run("bnf", 0, 3, now, now);
+    insertSource.run("mangadex", 1, 4, now, now);
+    insertSource.run("comicvine", 0, 5, now, now);
+
+    this.sqlite
+      .prepare(
+        `
+        INSERT INTO automation_settings (
+          id, watch_libraries, auto_enrich_new_books, isbn_priority_enabled,
+          scan_schedule_json, enrich_schedule_json, created_at, updated_at
+        )
+        VALUES (1, 0, 1, 1, ?, ?, ?, ?)
+        ON CONFLICT(id) DO NOTHING
+      `
+      )
+      .run(
+        JSON.stringify({ frequency: "disabled", time: "03:00", dayOfWeek: 1 }),
+        JSON.stringify({ frequency: "disabled", time: "04:00", dayOfWeek: 1 }),
+        now,
+        now
+      );
+  }
+}
+
+function sqlString(value: string): string {
+  return `'${value.replace(/'/g, "''")}'`;
 }

apps/api/src/database/schema.ts

@@ -23,6 +23,20 @@ export const libraries = sqliteTable("libraries", {
   updatedAt: text("updated_at").notNull()
 });
 
+export const series = sqliteTable(
+  "series",
+  {
+    id: integer("id").primaryKey({ autoIncrement: true }),
+    title: text("title").notNull(),
+    normalizedTitle: text("normalized_title").notNull(),
+    description: text("description"),
+    publisher: text("publisher"),
+    createdAt: text("created_at").notNull(),
+    updatedAt: text("updated_at").notNull()
+  },
+  (table) => ({ normalizedTitleIdx: uniqueIndex("series_normalized_title_unique").on(table.normalizedTitle) })
+);
+
 export const books = sqliteTable(
   "books",
   {
@@ -30,16 +44,26 @@ export const books = sqliteTable(
     libraryId: integer("library_id")
       .notNull()
       .references(() => libraries.id, { onDelete: "cascade" }),
+    seriesId: integer("series_id").references(() => series.id, { onDelete: "set null" }),
     title: text("title").notNull(),
     author: text("author"),
     description: text("description"),
     isbn: text("isbn"),
+    isbn13: text("isbn13"),
+    identifiersJson: text("identifiers_json"),
+    localMetadataJson: text("local_metadata_json"),
     language: text("language"),
     publisher: text("publisher"),
     publishedDate: text("published_date"),
-    format: text("format", { enum: ["epub", "pdf"] }).notNull(),
+    volumeNumber: integer("volume_number"),
+    volumeLabel: text("volume_label"),
+    format: text("format", { enum: ["epub", "pdf", "cbz", "cbr"] }).notNull(),
     filePath: text("file_path").notNull(),
     coverPath: text("cover_path"),
+    metadataStatus: text("metadata_status", { enum: ["enriched", "partial", "none"] }).notNull().default("none"),
+    metadataProvenanceJson: text("metadata_provenance_json"),
+    scanStatus: text("scan_status", { enum: ["idle", "running", "succeeded", "failed"] }).notNull().default("idle"),
+    enrichmentStatus: text("enrichment_status", { enum: ["idle", "running", "succeeded", "failed"] }).notNull().default("idle"),
     fileSize: integer("file_size").notNull(),
     fileMtime: text("file_mtime").notNull(),
     createdAt: text("created_at").notNull(),
@@ -48,6 +72,24 @@ export const books = sqliteTable(
   (table) => ({ filePathIdx: uniqueIndex("books_file_path_unique").on(table.filePath) })
 );
 
+export const readerPreferences = sqliteTable(
+  "reader_preferences",
+  {
+    id: integer("id").primaryKey({ autoIncrement: true }),
+    userId: integer("user_id")
+      .notNull()
+      .references(() => users.id, { onDelete: "cascade" }),
+    bookId: integer("book_id")
+      .notNull()
+      .references(() => books.id, { onDelete: "cascade" }),
+    mode: text("mode", { enum: ["paged", "scrolled", "horizontal", "vertical"] }).notNull(),
+    fit: text("fit", { enum: ["page", "width", "height", "auto"] }),
+    createdAt: text("created_at").notNull(),
+    updatedAt: text("updated_at").notNull()
+  },
+  (table) => ({ userBookIdx: uniqueIndex("reader_preferences_user_book_unique").on(table.userId, table.bookId) })
+);
+
 export const progress = sqliteTable(
   "progress",
   {
@@ -75,3 +117,23 @@ export const jobs = sqliteTable("jobs", {
   createdAt: text("created_at").notNull(),
   updatedAt: text("updated_at").notNull()
 });
+
+export const metadataSourceConfig = sqliteTable("metadata_source_config", {
+  provider: text("provider", { enum: ["local", "openlibrary", "googlebooks", "bnf", "mangadex", "comicvine"] }).primaryKey(),
+  enabled: integer("enabled", { mode: "boolean" }).notNull().default(true),
+  priority: integer("priority").notNull(),
+  apiKey: text("api_key"),
+  createdAt: text("created_at").notNull(),
+  updatedAt: text("updated_at").notNull()
+});
+
+export const automationSettings = sqliteTable("automation_settings", {
+  id: integer("id").primaryKey(),
+  watchLibraries: integer("watch_libraries", { mode: "boolean" }).notNull().default(false),
+  autoEnrichNewBooks: integer("auto_enrich_new_books", { mode: "boolean" }).notNull().default(true),
+  isbnPriorityEnabled: integer("isbn_priority_enabled", { mode: "boolean" }).notNull().default(true),
+  scanScheduleJson: text("scan_schedule_json").notNull(),
+  enrichScheduleJson: text("enrich_schedule_json").notNull(),
+  createdAt: text("created_at").notNull(),
+  updatedAt: text("updated_at").notNull()
+});

apps/api/src/jobs/jobs.service.ts

@@ -1,12 +1,16 @@
-import { Injectable } from "@nestjs/common";
-import { desc, eq } from "drizzle-orm";
+import { Injectable, OnModuleInit } from "@nestjs/common";
+import { desc, eq, inArray } from "drizzle-orm";
 import { DatabaseService } from "../database/database.service.js";
 import { jobs } from "../database/schema.js";
 
 @Injectable()
-export class JobsService {
+export class JobsService implements OnModuleInit {
   constructor(private readonly database: DatabaseService) {}
 
+  onModuleInit(): void {
+    this.failInterruptedJobs();
+  }
+
   create(type: string, detail?: string) {
     const now = this.database.now();
     return this.database.db
@@ -43,4 +47,16 @@ export class JobsService {
   list(limit = 50) {
     return this.database.db.select().from(jobs).orderBy(desc(jobs.createdAt)).limit(limit).all();
   }
+
+  private failInterruptedJobs(): void {
+    this.database.db
+      .update(jobs)
+      .set({
+        status: "failed",
+        error: "Job interrupted before completion, most likely by API shutdown or restart",
+        updatedAt: this.database.now()
+      })
+      .where(inArray(jobs.status, ["queued", "running"]))
+      .run();
+  }
 }

apps/api/src/libraries/libraries.service.ts

@@ -1,10 +1,9 @@
-import { BadRequestException, Injectable, NotFoundException } from "@nestjs/common";
-import { accessSync, constants, realpathSync, statSync } from "node:fs";
-import { resolve } from "node:path";
-import { eq } from "drizzle-orm";
+import { BadRequestException, ConflictException, Injectable, NotFoundException } from "@nestjs/common";
+import { and, eq, ne } from "drizzle-orm";
 import { CreateLibraryDto, UpdateLibraryDto } from "@readabook/shared";
 import { DatabaseService } from "../database/database.service.js";
 import { libraries } from "../database/schema.js";
+import { LibraryPathValidationError, resolveLibraryPath } from "./library-path.js";
 
 @Injectable()
 export class LibrariesService {
@@ -24,6 +23,7 @@ export class LibrariesService {
 
   create(input: CreateLibraryDto) {
     const path = this.validatePath(input.path);
+    this.ensurePathUnused(path);
     const now = this.database.now();
     return this.database.db
       .insert(libraries)
@@ -35,7 +35,10 @@ export class LibrariesService {
   update(id: number, input: UpdateLibraryDto) {
     const values: Partial<typeof libraries.$inferInsert> = { updatedAt: this.database.now() };
     if (input.name) values.name = input.name;
-    if (input.path) values.path = this.validatePath(input.path);
+    if (input.path) {
+      values.path = this.validatePath(input.path);
+      this.ensurePathUnused(values.path, id);
+    }
     if (input.enabled !== undefined) values.enabled = input.enabled;
     const library = this.database.db.update(libraries).set(values).where(eq(libraries.id, id)).returning().get();
     if (!library) {
@@ -49,17 +52,29 @@ export class LibrariesService {
   }
 
   private validatePath(input: string): string {
-    const resolved = resolve(input);
     try {
-      accessSync(resolved, constants.R_OK);
-      const stats = statSync(resolved);
-      if (!stats.isDirectory()) {
-        throw new BadRequestException("Library path must be a directory");
-      }
-      return realpathSync(resolved);
+      return resolveLibraryPath(input, this.database.config.libraryPathAliases);
     } catch (error) {
-      if (error instanceof BadRequestException) throw error;
-      throw new BadRequestException("Library path is not readable");
+      if (error instanceof LibraryPathValidationError) {
+        throw new BadRequestException({
+          code: error.code,
+          message: error.message,
+          path: error.path
+        });
+      }
+      throw error;
+    }
+  }
+
+  private ensurePathUnused(path: string, exceptId?: number): void {
+    const where = exceptId === undefined ? eq(libraries.path, path) : and(eq(libraries.path, path), ne(libraries.id, exceptId));
+    const existing = this.database.db.select({ id: libraries.id }).from(libraries).where(where).get();
+    if (existing) {
+      throw new ConflictException({
+        code: "LIBRARY_PATH_ALREADY_USED",
+        message: "Library path is already used",
+        path
+      });
     }
   }
 }

apps/api/src/libraries/library-path.test.ts

@@ -0,0 +1,49 @@
+import { closeSync, existsSync, mkdtempSync, openSync, rmSync } from "node:fs";
+import { tmpdir } from "node:os";
+import { join, resolve } from "node:path";
+import { afterEach, describe, expect, it } from "vitest";
+import { LibraryPathValidationError, resolveLibraryPath } from "./library-path.js";
+
+const tempDirs: string[] = [];
+const realBooksPath = "/home/anthony/Documents/Projects/ReadaBook/Books";
+
+afterEach(() => {
+  for (const dir of tempDirs.splice(0)) {
+    rmSync(dir, { recursive: true, force: true });
+  }
+});
+
+describe("library path resolution", () => {
+  it("resolves a readable directory", () => {
+    const dir = mkdtempSync(join(tmpdir(), "readabook-library-"));
+    tempDirs.push(dir);
+
+    expect(resolveLibraryPath(dir)).toBe(resolve(dir));
+  });
+
+  it("maps a host path alias to the mounted container path", () => {
+    const hostRoot = "/host/project/Books";
+    const mountedRoot = mkdtempSync(join(tmpdir(), "readabook-mounted-books-"));
+    tempDirs.push(mountedRoot);
+
+    expect(resolveLibraryPath(hostRoot, [{ from: hostRoot, to: mountedRoot }])).toBe(resolve(mountedRoot));
+  });
+
+  it("rejects regular files with a stable code", () => {
+    const dir = mkdtempSync(join(tmpdir(), "readabook-library-"));
+    tempDirs.push(dir);
+    const file = join(dir, "book.epub");
+    closeSync(openSync(file, "w"));
+
+    expect(() => resolveLibraryPath(file)).toThrowError(LibraryPathValidationError);
+    try {
+      resolveLibraryPath(file);
+    } catch (error) {
+      expect(error).toMatchObject({ code: "LIBRARY_PATH_NOT_DIRECTORY" });
+    }
+  });
+
+  it.runIf(existsSync(realBooksPath))("accepts the real Books corpus path used by QA", () => {
+    expect(resolveLibraryPath(realBooksPath)).toBe(resolve(realBooksPath));
+  });
+});

apps/api/src/libraries/library-path.ts

@@ -0,0 +1,72 @@
+import { accessSync, constants, realpathSync, statSync } from "node:fs";
+import { relative, resolve, sep } from "node:path";
+
+export type LibraryPathAlias = {
+  from: string;
+  to: string;
+};
+
+export type LibraryPathErrorCode = "LIBRARY_PATH_NOT_FOUND" | "LIBRARY_PATH_NOT_DIRECTORY" | "LIBRARY_PATH_NOT_READABLE";
+
+export class LibraryPathValidationError extends Error {
+  constructor(
+    public readonly code: LibraryPathErrorCode,
+    public readonly path: string
+  ) {
+    super(messageForCode(code));
+  }
+}
+
+export function resolveLibraryPath(input: string, aliases: LibraryPathAlias[] = []): string {
+  const candidates = candidatePaths(input, aliases);
+  let firstError: LibraryPathValidationError | null = null;
+
+  for (const candidate of candidates) {
+    try {
+      const stats = statSync(candidate);
+      if (!stats.isDirectory()) {
+        throw new LibraryPathValidationError("LIBRARY_PATH_NOT_DIRECTORY", candidate);
+      }
+      accessSync(candidate, constants.R_OK | constants.X_OK);
+      return realpathSync(candidate);
+    } catch (error) {
+      firstError ??= normalizePathError(error, candidate);
+    }
+  }
+
+  throw firstError ?? new LibraryPathValidationError("LIBRARY_PATH_NOT_FOUND", resolve(input));
+}
+
+function candidatePaths(input: string, aliases: LibraryPathAlias[]): string[] {
+  const resolved = resolve(input);
+  const candidates = [resolved];
+
+  for (const alias of aliases) {
+    const from = resolve(alias.from);
+    const to = resolve(alias.to);
+    const remainder = relative(from, resolved);
+    if (remainder === "" || (!remainder.startsWith("..") && remainder !== ".." && !remainder.startsWith(`..${sep}`))) {
+      candidates.push(resolve(to, remainder));
+    }
+  }
+
+  return [...new Set(candidates)];
+}
+
+function normalizePathError(error: unknown, path: string): LibraryPathValidationError {
+  if (error instanceof LibraryPathValidationError) return error;
+  const code = typeof error === "object" && error && "code" in error ? String(error.code) : "";
+  if (code === "ENOENT" || code === "ENOTDIR") {
+    return new LibraryPathValidationError("LIBRARY_PATH_NOT_FOUND", path);
+  }
+  if (code === "EACCES" || code === "EPERM") {
+    return new LibraryPathValidationError("LIBRARY_PATH_NOT_READABLE", path);
+  }
+  return new LibraryPathValidationError("LIBRARY_PATH_NOT_READABLE", path);
+}
+
+function messageForCode(code: LibraryPathErrorCode): string {
+  if (code === "LIBRARY_PATH_NOT_FOUND") return "Library path does not exist";
+  if (code === "LIBRARY_PATH_NOT_DIRECTORY") return "Library path must be a directory";
+  return "Library path is not readable";
+}

apps/api/src/metadata/adapters/bnf.provider.ts

@@ -0,0 +1,96 @@
+import { Injectable } from "@nestjs/common";
+import { XMLParser } from "fast-xml-parser";
+import { MetadataLookup, MetadataMatch, MetadataProvider, MetadataProviderConfig, MetadataSearchQuery } from "../metadata.types.js";
+import { toIsbn13 } from "../use-cases/extract-identifiers.js";
+import { normalizePublishedDate } from "../use-cases/normalize-published-date.js";
+import { providerFetch, providerHttpError } from "./provider-fetch.js";
+
+const parser = new XMLParser({ ignoreAttributes: false, attributeNamePrefix: "@_", removeNSPrefix: true });
+
+@Injectable()
+export class BnfProvider implements MetadataProvider {
+  readonly id = "bnf" as const;
+
+  async lookup(lookup: MetadataLookup, _config: MetadataProviderConfig): Promise<MetadataMatch | null> {
+    const isbn = lookup.identifiers.isbn13 ?? lookup.identifiers.isbn10;
+    if (!isbn) {
+      const matches = await this.searchByMetadata({ title: lookup.title, author: lookup.author, year: lookup.local.year }, _config);
+      return matches[0] ?? null;
+    }
+    const query = `bib.isbn all "${isbn}"`;
+    const matches = await this.searchSru(query, 1, lookup.identifiers.isbn13);
+    return matches[0] ?? null;
+  }
+
+  async searchByMetadata(query: MetadataSearchQuery, _config: MetadataProviderConfig): Promise<MetadataMatch[]> {
+    const title = query.title.replace(/"/g, " ");
+    const author = query.author?.replace(/"/g, " ");
+    const sruQuery = [`bib.title all "${title}"`, author ? `bib.author all "${author}"` : null, query.year ? `bib.date all "${query.year}"` : null]
+      .filter(Boolean)
+      .join(" and ");
+    return this.searchSru(sruQuery, 5, query.isbn ? toIsbn13(query.isbn) : null);
+  }
+
+  private async searchSru(query: string, maximumRecords: number, expectedIsbn13: string | null): Promise<MetadataMatch[]> {
+    const url = new URL("https://catalogue.bnf.fr/api/SRU");
+    url.searchParams.set("version", "1.2");
+    url.searchParams.set("operation", "searchRetrieve");
+    url.searchParams.set("query", query);
+    url.searchParams.set("maximumRecords", String(maximumRecords));
+
+    const response = await providerFetch(this.id, url, { timeoutMs: 5000 });
+    if (!response.ok) throw await providerHttpError(this.id, response, `BnF HTTP ${response.status}`);
+    const parsed = parser.parse(await response.text());
+    const records = asArray(parsed?.searchRetrieveResponse?.records?.record)
+      .map((entry) => (entry.recordData as Record<string, unknown> | undefined)?.record)
+      .filter((record): record is Record<string, unknown> => Boolean(record));
+    if (!records.length) return [];
+    return records
+      .map((record) => {
+        const fields = asArray(record.datafield);
+        return {
+          title: subfield(fields, "200", "a") ?? undefined,
+          author: subfield(fields, "200", "f") ?? ([subfield(fields, "700", "b"), subfield(fields, "700", "a")].filter(Boolean).join(" ") || null),
+          description: subfield(fields, "330", "a"),
+          isbn: bestIsbn(fields, expectedIsbn13),
+          language: subfield(fields, "101", "a"),
+          publisher: subfield(fields, "210", "c") ?? subfield(fields, "214", "c"),
+          publishedDate: normalizePublishedDate(cleanDate(subfield(fields, "210", "d") ?? subfield(fields, "214", "d")))
+        };
+      })
+      .sort((left, right) => Number(Boolean(right.isbn)) - Number(Boolean(left.isbn)));
+  }
+}
+
+function asArray(value: unknown): Array<Record<string, unknown>> {
+  if (!value) return [];
+  return Array.isArray(value) ? (value as Array<Record<string, unknown>>) : [value as Record<string, unknown>];
+}
+
+function field(fields: Array<Record<string, unknown>>, tag: string): Record<string, unknown> | undefined {
+  return fields.find((item) => item["@_tag"] === tag);
+}
+
+function subfield(fields: Array<Record<string, unknown>>, tag: string, code: string): string | null {
+  const subfields = asArray(field(fields, tag)?.subfield);
+  const value = subfields.find((item) => item["@_code"] === code)?.["#text"];
+  return typeof value === "string" && value.trim() ? value.trim() : null;
+}
+
+function bestIsbn(fields: Array<Record<string, unknown>>, expectedIsbn13: string | null): string | null {
+  const values = fields
+    .filter((item) => item["@_tag"] === "073" || item["@_tag"] === "010")
+    .flatMap((item) => asArray(item.subfield))
+    .filter((item) => item["@_code"] === "a")
+    .map((item) => String(item["#text"] ?? "").replace(/[^0-9X]/gi, ""))
+    .filter(Boolean);
+  return (
+    values.find((candidate) => Boolean(expectedIsbn13) && toIsbn13(candidate) === expectedIsbn13) ??
+    values.find((candidate) => Boolean(toIsbn13(candidate))) ??
+    null
+  );
+}
+
+function cleanDate(value: string | null): string | null {
+  return value?.match(/\d{4}/)?.[0] ?? value;
+}

apps/api/src/metadata/adapters/comic-vine.provider.ts

@@ -0,0 +1,160 @@
+import { Injectable } from "@nestjs/common";
+import { MetadataLookup, MetadataMatch, MetadataProvider, MetadataProviderConfig, MetadataSearchQuery } from "../metadata.types.js";
+import { normalizePublishedDate } from "../use-cases/normalize-published-date.js";
+import { providerFetch } from "./provider-fetch.js";
+
+@Injectable()
+export class ComicVineProvider implements MetadataProvider {
+  readonly id = "comicvine" as const;
+
+  async lookup(lookup: MetadataLookup, config: MetadataProviderConfig): Promise<MetadataMatch | null> {
+    const matches = await this.searchByMetadata({ title: lookup.title, author: lookup.author, year: lookup.local.year }, config);
+    return matches[0] ?? null;
+  }
+
+  async searchByMetadata(query: MetadataSearchQuery, config: MetadataProviderConfig): Promise<MetadataMatch[]> {
+    assertApiKey(config);
+    const title = cleanComicTitle(query.title);
+    const relaxed = title.replace(/\b\d{1,3}\b/g, " ").replace(/\s+/g, " ").trim();
+    const matches = [
+      ...(await searchComicVine("volume", title, config)),
+      ...(await searchComicVine("issue", title, config)),
+      ...(relaxed && relaxed !== title ? await searchComicVine("volume", relaxed, config) : [])
+    ];
+    return rankMatches(query.title, dedupe(matches));
+  }
+}
+
+export class ComicVineProviderError extends Error {
+  constructor(
+    readonly code: "missing-key" | "invalid-key" | "rate-limit" | "http",
+    readonly status: number,
+    message: string
+  ) {
+    super(message);
+    this.name = "ComicVineProviderError";
+  }
+}
+
+async function searchComicVine(resource: "volume" | "issue", title: string, config: MetadataProviderConfig): Promise<MetadataMatch[]> {
+  const url = new URL("https://comicvine.gamespot.com/api/search/");
+  url.searchParams.set("api_key", config.apiKey!);
+  url.searchParams.set("format", "json");
+  url.searchParams.set("resources", resource);
+  url.searchParams.set("query", title);
+  url.searchParams.set("limit", "10");
+  url.searchParams.set(
+    "field_list",
+    resource === "volume" ? "id,name,description,image,start_year,publisher" : "id,name,description,image,cover_date,store_date,volume"
+  );
+  const response = await providerFetch("comicvine", url, {
+    headers: { "User-Agent": "ReadaBook/0.1 self-hosted metadata provider (Comic Vine; non-commercial)" },
+    timeoutMs: 6000
+  });
+  const data = (await parseComicVineResponse(response)) as { results?: Array<Record<string, unknown>> };
+  return (data.results ?? []).map((entry) => comicVineToMatch(resource, entry));
+}
+
+function assertApiKey(config: MetadataProviderConfig): void {
+  if (!config.apiKey?.trim()) {
+    throw new ComicVineProviderError("missing-key", 0, "Comic Vine API key is required");
+  }
+}
+
+async function parseComicVineResponse(response: Response): Promise<unknown> {
+  const data = (await response.json().catch(() => ({}))) as { status_code?: number; error?: string };
+  if (response.status === 429) throw new ComicVineProviderError("rate-limit", response.status, data.error ?? "Comic Vine rate limit");
+  if (response.status === 401 || response.status === 403) throw new ComicVineProviderError("invalid-key", response.status, data.error ?? "Comic Vine API key rejected");
+  if (!response.ok) throw new ComicVineProviderError("http", response.status, data.error ?? `Comic Vine HTTP ${response.status}`);
+  if (data.status_code && data.status_code !== 1) {
+    const code = data.status_code === 100 || data.status_code === 101 ? "invalid-key" : "http";
+    throw new ComicVineProviderError(code, 200, data.error ?? `Comic Vine status ${data.status_code}`);
+  }
+  return data;
+}
+
+function comicVineToMatch(resource: "volume" | "issue", entry: Record<string, unknown>): MetadataMatch & { comicVineRank?: number } {
+  const volume = objectValue(entry.volume);
+  const title = resource === "issue" ? [stringValue(volume.name), stringValue(entry.name)].filter(Boolean).join(" ") : stringValue(entry.name);
+  return {
+    title: title || undefined,
+    description: cleanHtml(stringValue(entry.description)),
+    publisher: stringValue(objectValue(entry.publisher).name),
+    publishedDate: normalizePublishedDate(resource === "volume" ? stringValue(entry.start_year) : yearFromDate(stringValue(entry.cover_date) ?? stringValue(entry.store_date))),
+    coverUrl: imageUrl(entry.image),
+    sourceId: stringValue(entry.id)
+  };
+}
+
+function cleanComicTitle(value: string): string {
+  return value
+    .replace(/\.[A-Za-z0-9]{2,5}$/g, " ")
+    .replace(/[._]+/g, " ")
+    .replace(/\b(FRENCH|TRUEFRENCH|MULTI|CBZ|CBR|EPUB|PDF|eBook|ebook|scan|digital)\b/gi, " ")
+    .replace(/\([^)]*\)/g, " ")
+    .replace(/\b(e?bdz|Paprika\+?|emuleCenter(?:\.|\s+)net)\b/gi, " ")
+    .replace(/\bT(?:ome)?\s*0?(\d{1,3})\b/gi, " $1 ")
+    .replace(/[+]+/g, " ")
+    .replace(/\s+-\s+/g, " ")
+    .replace(/\s*-\s*$/g, " ")
+    .replace(/\s+/g, " ")
+    .trim();
+}
+
+function rankMatches(originalTitle: string, matches: Array<MetadataMatch & { comicVineRank?: number }>): MetadataMatch[] {
+  return [...matches]
+    .map((match) => ({ ...match, comicVineRank: comicRank(originalTitle, match) }))
+    .sort((left, right) => (right.comicVineRank ?? 0) - (left.comicVineRank ?? 0))
+    .map(({ comicVineRank: _rank, ...match }) => match);
+}
+
+function comicRank(originalTitle: string, match: MetadataMatch): number {
+  let rank = tokenOverlap(cleanComicTitle(originalTitle), match.title ?? "") * 10;
+  if (match.coverUrl) rank += 1;
+  if (match.description) rank += 1;
+  return rank;
+}
+
+function dedupe(matches: MetadataMatch[]): MetadataMatch[] {
+  const seen = new Set<string>();
+  return matches.filter((match) => {
+    const key = [match.sourceId, match.title].filter(Boolean).join("|");
+    if (seen.has(key)) return false;
+    seen.add(key);
+    return true;
+  });
+}
+
+function cleanHtml(value: string | null): string | null {
+  if (!value) return null;
+  return value.replace(/<[^>]*>/g, " ").replace(/&nbsp;/g, " ").replace(/&amp;/g, "&").replace(/\s+/g, " ").trim() || null;
+}
+
+function imageUrl(value: unknown): string | null {
+  const image = objectValue(value);
+  return stringValue(image.original_url) ?? stringValue(image.super_url) ?? stringValue(image.medium_url) ?? stringValue(image.small_url);
+}
+
+function yearFromDate(value: string | null): string | null {
+  return value?.match(/\b(1[5-9]\d{2}|20\d{2})\b/)?.[1] ?? null;
+}
+
+function tokenOverlap(left: string, right: string): number {
+  const leftTokens = new Set(normalizeTokens(left));
+  const rightTokens = new Set(normalizeTokens(right));
+  if (!leftTokens.size || !rightTokens.size) return 0;
+  return [...leftTokens].filter((token) => rightTokens.has(token)).length / leftTokens.size;
+}
+
+function normalizeTokens(value: string): string[] {
+  return value.normalize("NFD").replace(/[\u0300-\u036f]/g, "").toLowerCase().replace(/[^a-z0-9]+/g, " ").split(" ").filter(Boolean);
+}
+
+function objectValue(value: unknown): Record<string, unknown> {
+  return value && typeof value === "object" && !Array.isArray(value) ? (value as Record<string, unknown>) : {};
+}
+
+function stringValue(value: unknown): string | null {
+  if (typeof value === "number") return String(value);
+  return typeof value === "string" && value.trim() ? value.trim() : null;
+}

apps/api/src/metadata/adapters/google-books.provider.ts

@@ -0,0 +1,201 @@
+import { Injectable } from "@nestjs/common";
+import { MetadataLookup, MetadataMatch, MetadataProvider, MetadataProviderConfig, MetadataSearchQuery } from "../metadata.types.js";
+import { toIsbn13 } from "../use-cases/extract-identifiers.js";
+import { normalizePublishedDate } from "../use-cases/normalize-published-date.js";
+import { providerFetch } from "./provider-fetch.js";
+
+@Injectable()
+export class GoogleBooksProvider implements MetadataProvider {
+  readonly id = "googlebooks" as const;
+
+  async lookup(lookup: MetadataLookup, config: MetadataProviderConfig): Promise<MetadataMatch | null> {
+    const isbn = lookup.identifiers.isbn13 ?? lookup.identifiers.isbn10;
+    if (!isbn) {
+      const matches = await this.searchByMetadata({ title: lookup.title, author: lookup.author, year: lookup.local.year }, config);
+      return matches[0] ?? null;
+    }
+    const matches = await this.searchVolumes(`isbn:${isbn}`, config, lookup.title, lookup.author, lookup.identifiers.isbn13);
+    return rankMatches(lookup.title, matches)[0] ?? null;
+  }
+
+  async searchByMetadata(query: MetadataSearchQuery, config: MetadataProviderConfig): Promise<MetadataMatch[]> {
+    const attempts = googleBookQueries(query);
+    const matches: MetadataMatch[] = [];
+    const seen = new Set<string>();
+    for (const attempt of attempts) {
+      for (const match of await this.searchVolumes(attempt, config, query.title, query.author, query.isbn ? toIsbn13(query.isbn) : null)) {
+        const key = [match.sourceId, match.isbn, match.title, match.author].filter(Boolean).join("|");
+        if (seen.has(key)) continue;
+        seen.add(key);
+        matches.push(match);
+      }
+    }
+    return rankMatches(query.title, matches);
+  }
+
+  private async searchVolumes(
+    googleQuery: string,
+    config: MetadataProviderConfig,
+    originalTitle: string,
+    originalAuthor: string | null,
+    expectedIsbn13: string | null
+  ): Promise<MetadataMatch[]> {
+    const url = new URL("https://www.googleapis.com/books/v1/volumes");
+    url.searchParams.set("q", googleQuery);
+    url.searchParams.set("maxResults", "10");
+    url.searchParams.set("printType", "books");
+    if (config.apiKey) url.searchParams.set("key", config.apiKey);
+
+    const response = await providerFetch(this.id, url, { timeoutMs: 4000 });
+    const data = (await parseGoogleResponse(response)) as { items?: Array<{ id?: string; volumeInfo?: Record<string, unknown> }> };
+    return (data.items ?? [])
+      .map((item) => ({ sourceId: item.id, info: item.volumeInfo }))
+      .filter((item): item is { sourceId: string | undefined; info: Record<string, unknown> } => Boolean(item.info))
+      .map(({ sourceId, info }) => ({
+        title: stringValue(info.title) ?? undefined,
+        author: arrayJoin(info.authors),
+        description: stringValue(info.description),
+        language: stringValue(info.language),
+        publisher: stringValue(info.publisher),
+        publishedDate: normalizePublishedDate(stringValue(info.publishedDate)),
+        isbn: isbnFromIndustryIdentifiers(info.industryIdentifiers, expectedIsbn13),
+        coverUrl: coverUrl(info.imageLinks),
+        sourceId,
+        identifiers: { candidates: isbnCandidates(info.industryIdentifiers) },
+        googleRank: googleRank(originalTitle, originalAuthor, info)
+      }));
+  }
+}
+
+export class GoogleBooksProviderError extends Error {
+  constructor(
+    readonly code: "quota" | "auth" | "http",
+    readonly status: number,
+    message: string
+  ) {
+    super(message);
+    this.name = "GoogleBooksProviderError";
+  }
+}
+
+async function parseGoogleResponse(response: Response): Promise<unknown> {
+  const data = (await response.json().catch(() => ({}))) as { error?: { message?: string; status?: string } };
+  if (response.ok) return data;
+  const message = data.error?.message ?? `Google Books HTTP ${response.status}`;
+  if (response.status === 429) throw new GoogleBooksProviderError("quota", response.status, message);
+  if (response.status === 401 || response.status === 403) throw new GoogleBooksProviderError("auth", response.status, message);
+  throw new GoogleBooksProviderError("http", response.status, message);
+}
+
+function googleBookQueries(query: MetadataSearchQuery): string[] {
+  const cleaned = cleanGoogleBooksTitle(query.title);
+  const relaxed = relaxSeriesTitle(cleaned);
+  return [
+    query.isbn ? `isbn:${query.isbn}` : null,
+    googleTitleQuery(cleaned, query.author, true),
+    googleTitleQuery(cleaned, query.author, false),
+    relaxed !== cleaned ? googleTitleQuery(relaxed, query.author, true) : null,
+    relaxed !== cleaned ? googleTitleQuery(relaxed, null, false) : null,
+    googleTitleQuery(cleaned, null, false)
+  ].filter((value, index, values): value is string => Boolean(value) && values.indexOf(value) === index);
+}
+
+function googleTitleQuery(title: string, author: string | null, quoted: boolean): string {
+  const titlePart = quoted ? `intitle:"${title.replace(/"/g, " ")}"` : `intitle:${title}`;
+  return author ? `${titlePart}+inauthor:${author}` : titlePart;
+}
+
+function cleanGoogleBooksTitle(value: string): string {
+  return value
+    .replace(/\.[A-Za-z0-9]{2,5}$/g, " ")
+    .replace(/[._]+/g, " ")
+    .replace(/\b(FRENCH|TRUEFRENCH|MULTI|CBZ|CBR|EPUB|PDF|eBook|ebook|scan|digital)\b/gi, " ")
+    .replace(/\b(e?bdz|Paprika\+?|emuleCenter\.net)\b/gi, " ")
+    .replace(/\bT(?:ome)?\s*0?(\d{1,3})\b/gi, " $1 ")
+    .replace(/\bVol(?:ume)?\.?\s*0?(\d{1,3})\b/gi, " $1 ")
+    .replace(/[+]+/g, " ")
+    .replace(/\s+-\s+/g, " ")
+    .replace(/\s*-\s*$/g, " ")
+    .replace(/\s+/g, " ")
+    .trim();
+}
+
+function relaxSeriesTitle(value: string): string {
+  return value.replace(/\b\d{1,3}\b/g, " ").replace(/\s+/g, " ").trim();
+}
+
+function rankMatches(originalTitle: string, matches: Array<MetadataMatch & { googleRank?: number }>): MetadataMatch[] {
+  return [...matches]
+    .sort((left, right) => (right.googleRank ?? 0) - (left.googleRank ?? 0))
+    .map(({ googleRank: _googleRank, ...match }) => match);
+}
+
+function googleRank(originalTitle: string, originalAuthor: string | null, info: Record<string, unknown>): number {
+  const expectedVolume = volumeNumber(originalTitle);
+  const candidateTitle = [stringValue(info.title), stringValue(info.subtitle)].filter(Boolean).join(" ");
+  let rank = tokenOverlap(cleanGoogleBooksTitle(originalTitle), candidateTitle) * 10;
+  if (expectedVolume) {
+    const candidateVolume = volumeNumber(candidateTitle);
+    rank += candidateVolume === expectedVolume ? 6 : candidateVolume ? -4 : 0;
+  }
+  if (originalAuthor && arrayJoin(info.authors)?.toLowerCase().includes(originalAuthor.toLowerCase())) rank += 2;
+  if (stringValue(info.description)) rank += 1;
+  if (coverUrl(info.imageLinks)) rank += 1;
+  return rank;
+}
+
+function volumeNumber(value: string): string | null {
+  return value.match(/\b(?:T|tome|vol(?:ume)?\.?)\s*0?(\d{1,3})\b/i)?.[1] ?? value.match(/\b0?(\d{1,3})\b/)?.[1] ?? null;
+}
+
+function tokenOverlap(left: string, right: string): number {
+  const leftTokens = new Set(normalizeTokens(left));
+  const rightTokens = new Set(normalizeTokens(right));
+  if (!leftTokens.size || !rightTokens.size) return 0;
+  return [...leftTokens].filter((token) => rightTokens.has(token)).length / leftTokens.size;
+}
+
+function normalizeTokens(value: string): string[] {
+  return value
+    .normalize("NFD")
+    .replace(/[\u0300-\u036f]/g, "")
+    .toLowerCase()
+    .replace(/[^a-z0-9]+/g, " ")
+    .split(" ")
+    .filter(Boolean);
+}
+
+function stringValue(value: unknown): string | null {
+  return typeof value === "string" && value.trim() ? value.trim() : null;
+}
+
+function arrayJoin(value: unknown): string | null {
+  return Array.isArray(value) && value.length ? value.map(String).join(", ") : null;
+}
+
+function isbnFromIndustryIdentifiers(value: unknown, expectedIsbn13: string | null): string | null {
+  if (!Array.isArray(value)) return null;
+  const entries = value as Array<{ type?: unknown; identifier?: unknown }>;
+  const matching = entries.find((entry) => Boolean(expectedIsbn13) && toIsbn13(stringValue(entry.identifier) ?? "") === expectedIsbn13)?.identifier;
+  if (matching) return stringValue(matching);
+  const isbn13 = entries.find((entry) => entry.type === "ISBN_13")?.identifier;
+  const isbn10 = entries.find((entry) => entry.type === "ISBN_10")?.identifier;
+  return stringValue(isbn13) ?? stringValue(isbn10);
+}
+
+function isbnCandidates(value: unknown): string[] {
+  if (!Array.isArray(value)) return [];
+  return value.map((entry) => stringValue((entry as { identifier?: unknown }).identifier)).filter((entry): entry is string => Boolean(entry));
+}
+
+function coverUrl(value: unknown): string | null {
+  if (!value || typeof value !== "object") return null;
+  const links = value as Record<string, unknown>;
+  return (
+    stringValue(links.extraLarge) ??
+    stringValue(links.large) ??
+    stringValue(links.medium) ??
+    stringValue(links.thumbnail) ??
+    stringValue(links.smallThumbnail)
+  )?.replace(/^http:/, "https:") ?? null;
+}

apps/api/src/metadata/adapters/local.provider.ts

@@ -0,0 +1,28 @@
+import { Injectable } from "@nestjs/common";
+import { MetadataLookup, MetadataMatch, MetadataProvider, MetadataProviderConfig, MetadataSearchQuery } from "../metadata.types.js";
+import { normalizePublishedDate } from "../use-cases/normalize-published-date.js";
+
+@Injectable()
+export class LocalMetadataProvider implements MetadataProvider {
+  readonly id = "local" as const;
+
+  async lookup(lookup: MetadataLookup, _config: MetadataProviderConfig): Promise<MetadataMatch> {
+    return {
+      title: lookup.title,
+      author: lookup.author,
+      isbn: lookup.identifiers.isbn13 ?? lookup.identifiers.isbn10,
+      identifiers: lookup.identifiers
+    };
+  }
+
+  async searchByMetadata(query: MetadataSearchQuery, _config: MetadataProviderConfig): Promise<MetadataMatch[]> {
+    return [
+      {
+        title: query.title,
+        author: query.author,
+        isbn: query.isbn ?? null,
+        publishedDate: normalizePublishedDate(query.year)
+      }
+    ];
+  }
+}

apps/api/src/metadata/adapters/mangadex.provider.ts

@@ -0,0 +1,179 @@
+import { Injectable } from "@nestjs/common";
+import { MetadataLookup, MetadataMatch, MetadataProvider, MetadataProviderConfig, MetadataSearchQuery } from "../metadata.types.js";
+import { extractSeriesVolume } from "../use-cases/extract-series-volume.js";
+import { normalizePublishedDate } from "../use-cases/normalize-published-date.js";
+import { providerFetch } from "./provider-fetch.js";
+
+@Injectable()
+export class MangaDexProvider implements MetadataProvider {
+  readonly id = "mangadex" as const;
+
+  async lookup(lookup: MetadataLookup, config: MetadataProviderConfig): Promise<MetadataMatch | null> {
+    const matches = await this.searchByMetadata({ title: lookup.title, author: lookup.author, year: lookup.local.year }, config);
+    return matches[0] ?? null;
+  }
+
+  async searchByMetadata(query: MetadataSearchQuery, config: MetadataProviderConfig): Promise<MetadataMatch[]> {
+    const titles = mangaDexTitleQueries(query.title);
+    const matches: Array<MetadataMatch & { mangaDexRank?: number }> = [];
+    const seen = new Map<string, number>();
+    for (const title of titles) {
+      for (const match of await searchManga(title, config)) {
+        const key = match.sourceId ?? `${match.title}|${match.author}`;
+        const ranked = { ...match, scoreTitle: title, mangaDexRank: mangaRank(query.title, title, match) };
+        const existingIndex = seen.get(key);
+        if (existingIndex === undefined) {
+          seen.set(key, matches.length);
+          matches.push(ranked);
+          continue;
+        }
+        if ((ranked.mangaDexRank ?? 0) > (matches[existingIndex]?.mangaDexRank ?? 0)) {
+          matches[existingIndex] = ranked;
+        }
+      }
+    }
+    return rankMatches(matches);
+  }
+}
+
+export class MangaDexProviderError extends Error {
+  constructor(
+    readonly code: "rate-limit" | "http",
+    readonly status: number,
+    message: string
+  ) {
+    super(message);
+    this.name = "MangaDexProviderError";
+  }
+}
+
+async function searchManga(title: string, _config: MetadataProviderConfig): Promise<MetadataMatch[]> {
+  const url = new URL("https://api.mangadex.org/manga");
+  url.searchParams.set("title", title);
+  url.searchParams.set("limit", "10");
+  url.searchParams.set("includes[]", "cover_art");
+  url.searchParams.append("includes[]", "author");
+  url.searchParams.append("includes[]", "artist");
+  url.searchParams.set("contentRating[]", "safe");
+  url.searchParams.append("contentRating[]", "suggestive");
+  let response = await providerFetch("mangadex", url, {
+    headers: { "User-Agent": "ReadaBook/0.1 self-hosted metadata provider (MangaDex)" },
+    timeoutMs: 5000
+  });
+  if (response.status === 429) {
+    await sleep(retryDelayMs(response));
+    response = await providerFetch("mangadex", url, {
+      headers: { "User-Agent": "ReadaBook/0.1 self-hosted metadata provider (MangaDex)" },
+      timeoutMs: 5000
+    });
+  }
+  const data = (await parseMangaDexResponse(response)) as { data?: Array<Record<string, unknown>> };
+  return (data.data ?? []).map(mangaToMatch);
+}
+
+function retryDelayMs(response: Response): number {
+  const retryAfter = Number(response.headers.get("Retry-After"));
+  return Number.isFinite(retryAfter) && retryAfter > 0 ? Math.min(retryAfter * 1000, 2000) : 250;
+}
+
+function sleep(ms: number): Promise<void> {
+  return new Promise((resolve) => setTimeout(resolve, ms));
+}
+
+async function parseMangaDexResponse(response: Response): Promise<unknown> {
+  const data = (await response.json().catch(() => ({}))) as { errors?: Array<{ detail?: string; title?: string }> };
+  if (response.ok) return data;
+  const message = data.errors?.map((error) => error.detail ?? error.title).filter(Boolean).join("; ") || `MangaDex HTTP ${response.status}`;
+  if (response.status === 429) throw new MangaDexProviderError("rate-limit", response.status, message);
+  throw new MangaDexProviderError("http", response.status, message);
+}
+
+function mangaToMatch(manga: Record<string, unknown>): MetadataMatch & { mangaDexRank?: number } {
+  const id = stringValue(manga.id);
+  const attributes = objectValue(manga.attributes);
+  const relationships = Array.isArray(manga.relationships) ? (manga.relationships as Array<Record<string, unknown>>) : [];
+  const cover = relationships.find((entry) => entry.type === "cover_art");
+  const coverFile = stringValue(objectValue(cover?.attributes).fileName);
+  return {
+    title: localizedText(attributes.title) ?? undefined,
+    author: relationshipNames(relationships),
+    description: localizedText(attributes.description),
+    publishedDate: normalizePublishedDate(stringValue(attributes.year)),
+    language: stringValue(attributes.originalLanguage),
+    coverUrl: id && coverFile ? `https://uploads.mangadex.org/covers/${id}/${coverFile}.512.jpg` : null,
+    sourceId: id
+  };
+}
+
+function mangaDexTitleQueries(title: string): string[] {
+  const cleaned = extractSeriesVolume(title).seriesTitle;
+  return [cleaned, ...mangaDexTitleAliases(cleaned)].filter(
+    (value, index, values): value is string => Boolean(value) && values.indexOf(value) === index
+  );
+}
+
+function mangaDexTitleAliases(title: string): string[] {
+  const normalized = normalizeTitle(title);
+  if (normalized === "demon slayer school days") return ["Demon Slayer Kimetsu Academy", "Kimetsu Academy"];
+  return [];
+}
+
+function mangaRank(originalTitle: string, searchedTitle: string, match: MetadataMatch): number {
+  const expectedVolume = volumeNumber(originalTitle);
+  let rank = tokenOverlap(searchedTitle, match.title ?? "") * 10;
+  if (expectedVolume) {
+    const candidateVolume = volumeNumber(match.title ?? "");
+    rank += candidateVolume === expectedVolume ? 4 : candidateVolume ? -2 : 0;
+  }
+  if (match.coverUrl) rank += 1;
+  if (match.description) rank += 1;
+  return rank;
+}
+
+function rankMatches(matches: Array<MetadataMatch & { mangaDexRank?: number }>): MetadataMatch[] {
+  return [...matches].sort((left, right) => (right.mangaDexRank ?? 0) - (left.mangaDexRank ?? 0)).map(({ mangaDexRank: _rank, ...match }) => match);
+}
+
+function volumeNumber(value: string): string | null {
+  return value.match(/\b(?:T|tome|vol(?:ume)?\.?)\s*0?(\d{1,3})\b/i)?.[1] ?? value.match(/\b0?(\d{1,3})\b/)?.[1] ?? null;
+}
+
+function tokenOverlap(left: string, right: string): number {
+  const leftTokens = new Set(normalizeTitle(left).split(" ").filter(Boolean));
+  const rightTokens = new Set(normalizeTitle(right).split(" ").filter(Boolean));
+  if (!leftTokens.size || !rightTokens.size) return 0;
+  return [...leftTokens].filter((token) => rightTokens.has(token)).length / leftTokens.size;
+}
+
+function normalizeTitle(value: string): string {
+  return value
+    .normalize("NFD")
+    .replace(/[\u0300-\u036f]/g, "")
+    .toLowerCase()
+    .replace(/[^a-z0-9]+/g, " ")
+    .replace(/\s+/g, " ")
+    .trim();
+}
+
+function localizedText(value: unknown): string | null {
+  if (!value || typeof value !== "object") return null;
+  const entries = value as Record<string, unknown>;
+  return stringValue(entries.en) ?? stringValue(entries.fr) ?? Object.values(entries).map(stringValue).find(Boolean) ?? null;
+}
+
+function relationshipNames(relationships: Array<Record<string, unknown>>): string | null {
+  const names = relationships
+    .filter((entry) => entry.type === "author" || entry.type === "artist")
+    .map((entry) => stringValue(objectValue(entry.attributes).name))
+    .filter((entry): entry is string => Boolean(entry));
+  return names.length ? [...new Set(names)].join(", ") : null;
+}
+
+function objectValue(value: unknown): Record<string, unknown> {
+  return value && typeof value === "object" && !Array.isArray(value) ? (value as Record<string, unknown>) : {};
+}
+
+function stringValue(value: unknown): string | null {
+  if (typeof value === "number") return String(value);
+  return typeof value === "string" && value.trim() ? value.trim() : null;
+}

apps/api/src/metadata/adapters/open-library.provider.ts

@@ -0,0 +1,148 @@
+import { Injectable } from "@nestjs/common";
+import { MetadataLookup, MetadataMatch, MetadataProvider, MetadataProviderConfig, MetadataSearchQuery } from "../metadata.types.js";
+import { toIsbn13 } from "../use-cases/extract-identifiers.js";
+import { normalizePublishedDate } from "../use-cases/normalize-published-date.js";
+import { providerFetch, providerHttpError } from "./provider-fetch.js";
+
+@Injectable()
+export class OpenLibraryProvider implements MetadataProvider {
+  readonly id = "openlibrary" as const;
+
+  async lookup(lookup: MetadataLookup, _config: MetadataProviderConfig): Promise<MetadataMatch | null> {
+    const isbn = lookup.identifiers.isbn13 ?? lookup.identifiers.isbn10;
+    if (isbn) {
+      return this.lookupIsbn(isbn, lookup.identifiers.isbn13);
+    }
+    if (lookup.sourceId) {
+      return this.lookupEdition(lookup.sourceId, lookup.identifiers.isbn13);
+    }
+    const matches = await this.searchByMetadata({ title: lookup.title, author: lookup.author, year: lookup.local.year }, _config);
+    return matches[0] ?? null;
+  }
+
+  async searchByMetadata(query: MetadataSearchQuery, _config: MetadataProviderConfig): Promise<MetadataMatch[]> {
+    const url = new URL("https://openlibrary.org/search.json");
+    url.searchParams.set("title", query.title);
+    if (query.author) url.searchParams.set("author", query.author);
+    if (query.year) url.searchParams.set("first_publish_year", query.year);
+    url.searchParams.set("limit", "5");
+    const response = await providerFetch(this.id, url, {
+      headers: { "User-Agent": "ReadaBook/0.1 local-library-manager" },
+      timeoutMs: 4000
+    });
+    if (!response.ok) throw await providerHttpError(this.id, response, `OpenLibrary HTTP ${response.status}`);
+    const data = (await response.json()) as { docs?: Array<Record<string, unknown>> };
+    return (data.docs ?? []).map((doc) => ({
+      title: stringValue(doc.title) ?? undefined,
+      sourceId: firstArrayValue(doc.edition_key) ?? stringValue(doc.cover_edition_key),
+      author: arrayJoin(doc.author_name),
+      language: firstArrayValue(doc.language),
+      publisher: firstArrayValue(doc.publisher),
+      publishedDate: normalizePublishedDate(String(doc.first_publish_year ?? "") || null),
+      isbn: bestIsbn(doc.isbn, query.isbn ? toIsbn13(query.isbn) : null),
+      coverUrl: openLibraryCoverUrl(doc.cover_i, firstArrayValue(doc.edition_key) ?? stringValue(doc.cover_edition_key))
+    }));
+  }
+
+  private async lookupEdition(sourceId: string, expectedIsbn13: string | null): Promise<MetadataMatch | null> {
+    const editionKey = sourceId.replace(/^\/?books\//, "");
+    if (!editionKey) return null;
+    const response = await providerFetch(this.id, `https://openlibrary.org/books/${encodeURIComponent(editionKey)}.json`, {
+      headers: { "User-Agent": "ReadaBook/0.1 local-library-manager" },
+      timeoutMs: 4000
+    });
+    if (response.status === 404) return null;
+    if (!response.ok) throw await providerHttpError(this.id, response, `OpenLibrary HTTP ${response.status}`);
+    return this.editionToMatch((await response.json()) as Record<string, unknown>, expectedIsbn13);
+  }
+
+  private async lookupIsbn(isbn: string, expectedIsbn13: string | null): Promise<MetadataMatch | null> {
+    const response = await providerFetch(this.id, `https://openlibrary.org/isbn/${encodeURIComponent(isbn)}.json`, {
+      headers: { "User-Agent": "ReadaBook/0.1 local-library-manager" },
+      timeoutMs: 4000
+    });
+    if (response.status === 404) return null;
+    if (!response.ok) throw await providerHttpError(this.id, response, `OpenLibrary HTTP ${response.status}`);
+    return this.editionToMatch((await response.json()) as Record<string, unknown>, expectedIsbn13);
+  }
+
+  private async editionToMatch(edition: Record<string, unknown>, expectedIsbn13: string | null): Promise<MetadataMatch> {
+    const author = await this.lookupAuthorName(edition.authors);
+    return {
+      title: stringValue(edition.title) ?? undefined,
+      author,
+      description: descriptionValue(edition.description),
+      isbn: bestIsbn([...(asStringArray(edition.isbn_13)), ...(asStringArray(edition.isbn_10))], expectedIsbn13),
+      language: languageValue(edition.languages),
+      publisher: firstArrayValue(edition.publishers),
+      publishedDate: normalizePublishedDate(stringValue(edition.publish_date)),
+      coverUrl: editionCoverUrl(edition)
+    };
+  }
+
+  private async lookupAuthorName(value: unknown): Promise<string | null> {
+    const key = (Array.isArray(value) ? value[0] : undefined)?.key;
+    if (typeof key !== "string") return null;
+    const response = await providerFetch(this.id, `https://openlibrary.org${key}.json`, {
+      headers: { "User-Agent": "ReadaBook/0.1 local-library-manager" },
+      timeoutMs: 3000
+    });
+    if (response.status === 404) return null;
+    if (!response.ok) throw await providerHttpError(this.id, response, `OpenLibrary HTTP ${response.status}`);
+    const author = (await response.json()) as Record<string, unknown>;
+    return stringValue(author.name);
+  }
+}
+
+function stringValue(value: unknown): string | null {
+  return typeof value === "string" && value.trim() ? value.trim() : null;
+}
+
+function firstArrayValue(value: unknown): string | null {
+  if (!Array.isArray(value) || !value.length) return null;
+  return String(value[0]);
+}
+
+function arrayJoin(value: unknown): string | null {
+  return Array.isArray(value) && value.length ? value.map(String).join(", ") : null;
+}
+
+function bestIsbn(value: unknown, expectedIsbn13: string | null): string | null {
+  if (!Array.isArray(value)) return null;
+  const values = value.map(String);
+  return (
+    values.find((candidate) => Boolean(expectedIsbn13) && toIsbn13(candidate) === expectedIsbn13) ??
+    values.find((candidate) => Boolean(toIsbn13(candidate))) ??
+    null
+  );
+}
+
+function asStringArray(value: unknown): string[] {
+  return Array.isArray(value) ? value.map(String) : [];
+}
+
+function descriptionValue(value: unknown): string | null {
+  if (typeof value === "string") return value.trim() || null;
+  if (typeof value === "object" && value && "value" in value) return stringValue(value.value);
+  return null;
+}
+
+function languageValue(value: unknown): string | null {
+  const key = (Array.isArray(value) ? value[0] : undefined)?.key;
+  return typeof key === "string" ? key.split("/").pop() ?? null : null;
+}
+
+function openLibraryCoverUrl(coverId: unknown, editionKey: string | null): string | null {
+  if (typeof coverId === "number" || typeof coverId === "string") {
+    return `https://covers.openlibrary.org/b/id/${encodeURIComponent(String(coverId))}-L.jpg`;
+  }
+  if (editionKey) {
+    return `https://covers.openlibrary.org/b/olid/${encodeURIComponent(editionKey)}-L.jpg`;
+  }
+  return null;
+}
+
+function editionCoverUrl(edition: Record<string, unknown>): string | null {
+  const covers = Array.isArray(edition.covers) ? edition.covers : [];
+  return openLibraryCoverUrl(covers[0], stringValue(edition.key)?.split("/").pop() ?? null);
+}

apps/api/src/metadata/adapters/provider-fetch.ts

@@ -0,0 +1,88 @@
+import { MetadataProviderId } from "../metadata.types.js";
+
+export type MetadataProviderFailureCode = "timeout" | "dns" | "quota" | "auth" | "http" | "network";
+
+export class MetadataProviderRequestError extends Error {
+  constructor(
+    readonly provider: MetadataProviderId | "cover",
+    readonly code: MetadataProviderFailureCode,
+    readonly message: string,
+    readonly status?: number
+  ) {
+    super(message);
+    this.name = "MetadataProviderRequestError";
+  }
+}
+
+export async function providerFetch(
+  provider: MetadataProviderId | "cover",
+  input: string | URL,
+  init: RequestInit & { timeoutMs: number }
+): Promise<Response> {
+  const { timeoutMs, ...requestInit } = init;
+  try {
+    return await fetch(input, {
+      ...requestInit,
+      signal: requestInit.signal ?? AbortSignal.timeout(timeoutMs)
+    });
+  } catch (error) {
+    throw classifyFetchError(provider, error, timeoutMs);
+  }
+}
+
+export async function providerHttpError(
+  provider: MetadataProviderId | "cover",
+  response: Response,
+  fallbackMessage: string
+): Promise<MetadataProviderRequestError> {
+  const message = (await response.text().catch(() => "")) || fallbackMessage;
+  if (response.status === 429) return new MetadataProviderRequestError(provider, "quota", message, response.status);
+  if (response.status === 401 || response.status === 403) return new MetadataProviderRequestError(provider, "auth", message, response.status);
+  return new MetadataProviderRequestError(provider, "http", message, response.status);
+}
+
+export function describeMetadataProviderError(error: unknown): string {
+  if (error instanceof MetadataProviderRequestError) {
+    const status = error.status ? ` HTTP ${error.status}` : "";
+    return `${error.code}${status}: ${error.message}`;
+  }
+  if (hasProviderErrorCode(error)) {
+    const status = typeof error.status === "number" ? ` HTTP ${error.status}` : "";
+    return `${String(error.code)}${status}: ${errorMessage(error)}`;
+  }
+  return errorMessage(error);
+}
+
+function classifyFetchError(provider: MetadataProviderId | "cover", error: unknown, timeoutMs: number): MetadataProviderRequestError {
+  const code = nestedCode(error);
+  if (isTimeoutError(error)) {
+    return new MetadataProviderRequestError(provider, "timeout", `request timed out after ${timeoutMs}ms`);
+  }
+  if (code === "EAI_AGAIN" || code === "ENOTFOUND") {
+    return new MetadataProviderRequestError(provider, "dns", code);
+  }
+  return new MetadataProviderRequestError(provider, "network", errorMessage(error));
+}
+
+function isTimeoutError(error: unknown): boolean {
+  return (
+    error instanceof DOMException && (error.name === "AbortError" || error.name === "TimeoutError") ||
+    error instanceof Error && (error.name === "AbortError" || error.name === "TimeoutError")
+  );
+}
+
+function nestedCode(error: unknown): string | null {
+  if (!error || typeof error !== "object") return null;
+  const direct = "code" in error && typeof error.code === "string" ? error.code : null;
+  if (direct) return direct;
+  const cause = "cause" in error ? error.cause : null;
+  return cause && typeof cause === "object" && "code" in cause && typeof cause.code === "string" ? cause.code : null;
+}
+
+function hasProviderErrorCode(error: unknown): error is { code: string; status?: number; message?: string } {
+  return Boolean(error && typeof error === "object" && "code" in error && typeof error.code === "string");
+}
+
+function errorMessage(error: unknown): string {
+  return error instanceof Error ? error.message : String(error);
+}

apps/api/src/metadata/extract-identifiers.test.ts

@@ -0,0 +1,32 @@
+import { mkdtempSync, writeFileSync } from "node:fs";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
+import { describe, expect, it } from "vitest";
+import { ExtractIdentifiers, normalizeIsbn, toIsbn13 } from "./use-cases/extract-identifiers.js";
+
+describe("ISBN normalization", () => {
+  it("accepts valid ISBN-10/13 and rejects bad checksums", () => {
+    expect(normalizeIsbn("0-306-40615-2")).toBe("0306406152");
+    expect(normalizeIsbn("978-0-306-40615-7")).toBe("9780306406157");
+    expect(normalizeIsbn("978-0-306-40615-8")).toBeNull();
+    expect(normalizeIsbn("5030931067112")).toBeNull();
+  });
+
+  it("converts ISBN-10 to ISBN-13", () => {
+    expect(toIsbn13("0-306-40615-2")).toBe("9780306406157");
+  });
+});
+
+describe("ExtractIdentifiers", () => {
+  it("uses embedded PDF text before filename fallback candidates", () => {
+    const dir = mkdtempSync(join(tmpdir(), "readabook-isbn-"));
+    const file = join(dir, "fallback 9780306406157.pdf");
+    writeFileSync(file, "%PDF-1.4\n1 0 obj << /Title (Book) /Subject (ISBN 0-306-40615-2) >> endobj");
+
+    const identifiers = new ExtractIdentifiers().fromMetadataAndFile({ isbn: null }, file);
+
+    expect(identifiers.isbn10).toBe("0306406152");
+    expect(identifiers.isbn13).toBe("9780306406157");
+    expect(identifiers.candidates).toContain("9780306406157");
+  });
+});

apps/api/src/metadata/extract-series-volume.test.ts

@@ -0,0 +1,43 @@
+import { describe, expect, it } from "vitest";
+import { extractSeriesVolume, normalizeSeriesTitle } from "./use-cases/extract-series-volume.js";
+
+describe("extractSeriesVolume", () => {
+  it.each([
+    ["Daredevil 001.cbz", "Daredevil", 1, "001"],
+    ["Daredevil 002.cbz", "Daredevil", 2, "002"],
+    ["Daredevil - 001[Sebmov].cbz", "Daredevil", 1, "001"],
+    ["DareDevil - 007[Fennlhor].cbz", "DareDevil", 7, "007"],
+    ["Solo Leveling T03.cbz", "Solo Leveling", 3, "T03"],
+    ["Solo Leveling 003.cbz", "Solo Leveling", 3, "003"],
+    ["Solo Leveling Tome 3.cbz", "Solo Leveling", 3, "Tome 3"],
+    ["Solo Leveling Vol. 3.cbz", "Solo Leveling", 3, "Vol 3"],
+    ["Daredevil Issue 6.cbz", "Daredevil", 6, "Issue 6"],
+    ["Daredevil #6.cbz", "Daredevil", 6, "#6"],
+    ["Eyeshield.21.T01.FRENCH.CBZ.eBook-ebdz.cbz", "Eyeshield 21", 1, "T01"],
+    ["Dragon.Ball.SD.T01.FRENCH.CBZ.eBook-Paprika+.cbz", "Dragon Ball SD", 1, "T01"],
+    ["Demon.Slayer.School.Days.T01.FRENCH.CBZ.eBook-ebdz.cbz", "Demon Slayer School Days", 1, "T01"]
+  ])("extracts series and volume from %s", (fileName, seriesTitle, volumeNumber, volumeLabel) => {
+    expect(extractSeriesVolume(seriesTitle, `/books/${fileName}`)).toMatchObject({
+      seriesTitle,
+      normalizedSeriesTitle: normalizeSeriesTitle(seriesTitle),
+      volumeNumber,
+      volumeLabel
+    });
+  });
+
+  it("keeps numeric title components that are not explicit volume markers", () => {
+    expect(extractSeriesVolume("Eyeshield 21")).toMatchObject({
+      seriesTitle: "Eyeshield 21",
+      normalizedSeriesTitle: "eyeshield 21",
+      volumeNumber: null,
+      volumeLabel: null
+    });
+  });
+
+  it("does not fuzzy-merge distinct normalized series titles", () => {
+    expect(normalizeSeriesTitle("Dragon Ball SD")).toBe("dragon ball sd");
+    expect(normalizeSeriesTitle("Dragon Ball")).toBe("dragon ball");
+    expect(normalizeSeriesTitle("Lord of the Mysteries")).toBe("lord of the mysteries");
+    expect(normalizeSeriesTitle("The Lord of the Rings")).toBe("the lord of the rings");
+  });
+});

apps/api/src/metadata/local-metadata-hints.test.ts

@@ -0,0 +1,113 @@
+import { describe, expect, it } from "vitest";
+import { ExtractLocalMetadataHints } from "./use-cases/extract-local-metadata-hints.js";
+import { ScoreMetadataMatch } from "./use-cases/score-metadata-match.js";
+
+describe("local metadata hints", () => {
+  it("extracts title, author and year hints from a book without ISBN", () => {
+    const hints = new ExtractLocalMetadataHints().fromMetadataAndFile(
+      {
+        title: "Harry Potter et le Prince de Sang Mele",
+        author: null,
+        description: null,
+        isbn: null,
+        language: null,
+        publisher: null,
+        publishedDate: null,
+        coverPath: null
+      },
+      "/library/Harry Potter et le Prince de Sang Mele (J. K. Rowling) 2005.epub"
+    );
+
+    expect(hints).toMatchObject({
+      title: "Harry Potter et le Prince de Sang Mele",
+      author: "J. K. Rowling",
+      year: "2005",
+      isbn: null
+    });
+  });
+});
+
+describe("metadata match scoring", () => {
+  it("keeps the best remote match for locally extracted title and author", () => {
+    const best = new ScoreMetadataMatch().best(
+      { title: "Harry Potter et le Prince de Sang Mele", author: "J. K. Rowling", year: "2005" },
+      [
+        { title: "Harry Potter et la chambre des secrets", author: "J. K. Rowling", publishedDate: "1998" },
+        { title: "Harry Potter et le Prince de sang-mêlé", author: "J.K. Rowling", publishedDate: "2005" }
+      ]
+    );
+
+    expect(best?.match.title).toBe("Harry Potter et le Prince de sang-mêlé");
+    expect(best?.score).toBeGreaterThan(70);
+  });
+
+  it("scores titles, authors and dates with the contract weights", () => {
+    const scorer = new ScoreMetadataMatch();
+    const result = scorer.details(
+      { title: "The Harry Potter et le prince de sang mêlé: édition collector", author: "J. K. Rowling", year: "2005" },
+      {
+        title: "Harry Potter et le prince de sang-mêlé",
+        author: "J.K. Rowling",
+        publishedDate: "2006"
+      }
+    );
+
+    expect(result.titleScore).toBe(100);
+    expect(result.authorScore).toBe(30);
+    expect(result.dateScore).toBe(5);
+    expect(result.score).toBe(96);
+  });
+
+  it("uses exact ISBN matches before weaker title-only candidates", () => {
+    const best = new ScoreMetadataMatch().best(
+      { title: "Daredevil", author: null, isbn: "9782809476255" },
+      [
+        {
+          title: "Daredevil",
+          author: "Rosemary Carter",
+          isbn: "9780373105601"
+        },
+        {
+          title: "Daredevil by Chip Zdarsky",
+          author: "Chip Zdarsky",
+          isbn: "9782809476255"
+        }
+      ]
+    );
+
+    expect(best?.match.author).toBe("Chip Zdarsky");
+    expect(best?.isbnMatch).toBe(true);
+  });
+
+  it("scores unrelated serialized or audiobook candidates from title/author/date only", () => {
+    const scorer = new ScoreMetadataMatch();
+    const query = { title: "Harry Potter et le prince de sang mêlé", author: "J. K. Rowling" };
+    const french = scorer.score(query, {
+      title: "Harry Potter et le prince de sang-mêlé",
+      author: "J. K. Rowling",
+      isbn: "9782070577644"
+    });
+    const koreanVolume = scorer.score(query, {
+      title: "Harry Potter et le prince de sang-mêlé - Volume 1",
+      author: "J. K. Rowling",
+      publisher: "문학수첩",
+      isbn: "9791193790724"
+    });
+
+    expect(french).toBeGreaterThan(80);
+    expect(koreanVolume).toBeLessThan(french);
+  });
+
+  it("does not apply legacy audiobook penalties outside the contract", () => {
+    const scorer = new ScoreMetadataMatch();
+    const query = { title: "Harry Potter et le prince de sang mêlé", author: "J. K. Rowling" };
+
+    expect(
+      scorer.score(query, {
+        title: "Harry Potter Et Le Prince De Sang-mêlé Livre Audio",
+        author: "J. K. Rowling",
+        isbn: "9782075105170"
+      })
+    ).toBeGreaterThan(80);
+  });
+});

apps/api/src/metadata/metadata-providers.test.ts

@@ -0,0 +1,410 @@
+import { afterEach, describe, expect, it, vi } from "vitest";
+import { BnfProvider } from "./adapters/bnf.provider.js";
+import { ComicVineProvider } from "./adapters/comic-vine.provider.js";
+import { GoogleBooksProvider, GoogleBooksProviderError } from "./adapters/google-books.provider.js";
+import { MangaDexProvider } from "./adapters/mangadex.provider.js";
+import { OpenLibraryProvider } from "./adapters/open-library.provider.js";
+import { MetadataProviderRequestError } from "./adapters/provider-fetch.js";
+import { MetadataLookup, MetadataProviderConfig } from "./metadata.types.js";
+
+const lookup: MetadataLookup = {
+  title: "Harry Potter et la Chambre des Secrets",
+  author: "J. K. Rowling",
+  filePath: "/library/HP/Harry Potter et la Chambre des Secrets (J.K. Rowling).epub",
+  identifiers: { isbn10: null, isbn13: "9782070612376", candidates: ["9782070612376"] },
+  local: {
+    title: "Harry Potter et la Chambre des Secrets",
+    author: "J. K. Rowling",
+    year: null,
+    isbn: "9782070612376",
+    fileTitle: "Harry Potter et la Chambre des Secrets (J.K. Rowling)",
+    raw: {
+      title: "Harry Potter et la Chambre des Secrets",
+      author: "J. K. Rowling",
+      publishedDate: null,
+      fileName: "Harry Potter et la Chambre des Secrets (J.K. Rowling)"
+    }
+  }
+};
+
+const config: MetadataProviderConfig = { provider: "openlibrary", enabled: true, priority: 1, apiKey: null };
+
+afterEach(() => {
+  vi.unstubAllGlobals();
+});
+
+describe("metadata providers", () => {
+  it("queries OpenLibrary by ISBN and normalizes the matching book", async () => {
+    const fetchMock = vi
+      .fn()
+      .mockResolvedValueOnce(
+        jsonResponse({
+          title: "Harry Potter et la Chambre des Secrets",
+          authors: [{ key: "/authors/OL23919A" }],
+          languages: [{ key: "/languages/fre" }],
+          publishers: ["Gallimard jeunesse"],
+          publish_date: "2007-03",
+          isbn_13: ["9782070612376"],
+          isbn_10: ["2070612379"]
+        })
+      )
+      .mockResolvedValueOnce(jsonResponse({ name: "J. K. Rowling" }));
+    vi.stubGlobal("fetch", fetchMock);
+
+    const result = await new OpenLibraryProvider().lookup(lookup, config);
+
+    expect(String((fetchMock.mock.calls[0] as unknown[])[0])).toBe("https://openlibrary.org/isbn/9782070612376.json");
+    expect(result).toMatchObject({
+      title: "Harry Potter et la Chambre des Secrets",
+      author: "J. K. Rowling",
+      isbn: "9782070612376"
+    });
+  });
+
+  it("reports Google Books quota exhaustion explicitly", async () => {
+    const fetchMock = vi.fn(async () => jsonResponse({ error: { code: 429, status: "RESOURCE_EXHAUSTED" } }, 429));
+    vi.stubGlobal("fetch", fetchMock);
+
+    await expect(new GoogleBooksProvider().lookup(lookup, { ...config, provider: "googlebooks" })).rejects.toMatchObject({
+      code: "quota",
+      status: 429
+    } satisfies Partial<GoogleBooksProviderError>);
+
+    expect(String((fetchMock.mock.calls[0] as unknown[])[0])).toContain("q=isbn%3A9782070612376");
+  });
+
+  it("classifies provider DNS failures explicitly", async () => {
+    const error = new TypeError("fetch failed") as Error & { cause?: { code: string } };
+    error.cause = { code: "EAI_AGAIN" };
+    vi.stubGlobal("fetch", vi.fn(async () => Promise.reject(error)));
+
+    await expect(new OpenLibraryProvider().searchByMetadata({ title: "Daredevil", author: null }, config)).rejects.toMatchObject({
+      code: "dns",
+      message: "EAI_AGAIN"
+    } satisfies Partial<MetadataProviderRequestError>);
+  });
+
+  it.each([
+    ["Demon.Slayer.School.Days.T01.FRENCH.CBZ.eBook-ebdz", "Demon Slayer School Days 1"],
+    ["Dragon.Ball.SD.T01.FRENCH.CBZ.eBook-Paprika+", "Dragon Ball SD 1"],
+    ["Eyeshield.21.T01.FRENCH.CBZ.eBook-ebdz", "Eyeshield 21 1"],
+    ["Solo Leveling T03", "Solo Leveling 3"]
+  ])("cleans noisy Google Books title queries for %s", async (title, expectedCleanTitle) => {
+    const fetchMock = vi.fn(async () => jsonResponse({ totalItems: 0, items: [] }));
+    vi.stubGlobal("fetch", fetchMock);
+
+    await new GoogleBooksProvider().searchByMetadata({ title, author: null }, { ...config, provider: "googlebooks" });
+    const queries = fetchMock.mock.calls.map((call) => new URL(String((call as unknown[])[0])).searchParams.get("q") ?? "");
+
+    expect(queries[0]).toBe(`intitle:"${expectedCleanTitle}"`);
+    expect(queries.join(" ")).not.toMatch(/\b(FRENCH|CBZ|eBook|ebdz|Paprika)\b/i);
+  });
+
+  it("sorts Google Books results by matching manga volume instead of taking the first item", async () => {
+    const fetchMock = vi.fn(async () =>
+      jsonResponse({
+        totalItems: 2,
+        items: [
+          { id: "volume-2", volumeInfo: { title: "Solo Leveling, Vol. 2", authors: ["Chugong"], publishedDate: "2021" } },
+          { id: "volume-3", volumeInfo: { title: "Solo Leveling, Vol. 3", authors: ["Chugong"], publishedDate: "2021" } }
+        ]
+      })
+    );
+    vi.stubGlobal("fetch", fetchMock);
+
+    const results = await new GoogleBooksProvider().searchByMetadata(
+      { title: "Solo Leveling T03", author: null },
+      { ...config, provider: "googlebooks" }
+    );
+
+    expect(results[0]).toMatchObject({ title: "Solo Leveling, Vol. 3", sourceId: "volume-3" });
+  });
+
+  it.each([
+    ["Solo Leveling T03", "Solo Leveling"],
+    ["Solo Leveling 003", "Solo Leveling"],
+    ["Eyeshield.21.T01.FRENCH.CBZ.eBook-ebdz", "Eyeshield 21"],
+    ["Dragon.Ball.SD.T01.FRENCH.CBZ.eBook-Paprika+", "Dragon Ball SD"]
+  ])("queries MangaDex with the cleaned series title for %s", async (title, expectedQuery) => {
+    const fetchMock = vi.fn(async () => jsonResponse({ data: [] }));
+    vi.stubGlobal("fetch", fetchMock);
+
+    await new MangaDexProvider().searchByMetadata({ title, author: null }, { ...config, provider: "mangadex" });
+    const firstUrl = new URL(String((fetchMock.mock.calls[0] as unknown[])[0]));
+
+    expect(firstUrl.searchParams.get("title")).toBe(expectedQuery);
+  });
+
+  it("queries MangaDex aliases and maps cover_art to a cover URL", async () => {
+    const fetchMock = vi
+      .fn()
+      .mockResolvedValueOnce(jsonResponse({ data: [] }))
+      .mockResolvedValueOnce(
+        jsonResponse({
+          data: [
+            {
+              id: "manga-1",
+              attributes: {
+                title: { en: "Demon Slayer: Kimetsu Academy" },
+                description: { en: "School spin-off." },
+                year: 2021,
+                originalLanguage: "ja"
+              },
+              relationships: [
+                { type: "cover_art", attributes: { fileName: "cover.jpg" } },
+                { type: "author", attributes: { name: "Natsuki Hokami" } }
+              ]
+            }
+          ]
+        })
+      )
+      .mockResolvedValue(jsonResponse({ data: [] }));
+    vi.stubGlobal("fetch", fetchMock);
+
+    const results = await new MangaDexProvider().searchByMetadata(
+      { title: "Demon.Slayer.School.Days.T01.FRENCH.CBZ.eBook-ebdz", author: null },
+      { ...config, provider: "mangadex" }
+    );
+    const firstUrl = new URL(String((fetchMock.mock.calls[0] as unknown[])[0]));
+    const secondUrl = new URL(String((fetchMock.mock.calls[1] as unknown[])[0]));
+
+    expect(firstUrl.searchParams.get("title")).toBe("Demon Slayer School Days");
+    expect(secondUrl.searchParams.get("title")).toBe("Demon Slayer Kimetsu Academy");
+    expect(results[0]).toMatchObject({
+      title: "Demon Slayer: Kimetsu Academy",
+      scoreTitle: "Demon Slayer Kimetsu Academy",
+      author: "Natsuki Hokami",
+      publishedDate: "2021",
+      coverUrl: "https://uploads.mangadex.org/covers/manga-1/cover.jpg.512.jpg"
+    });
+  });
+
+  it("keeps Dragon Ball SD ahead of Dragon Ball for MangaDex matches", async () => {
+    const fetchMock = vi.fn(async () =>
+      jsonResponse({
+        data: [
+          {
+            id: "dragon-ball",
+            attributes: { title: { en: "Dragon Ball" }, description: { en: "Original series." }, year: 1984, originalLanguage: "ja" },
+            relationships: []
+          },
+          {
+            id: "dragon-ball-sd",
+            attributes: { title: { en: "Dragon Ball SD" }, description: { en: "SD spin-off." }, year: 2010, originalLanguage: "ja" },
+            relationships: []
+          }
+        ]
+      })
+    );
+    vi.stubGlobal("fetch", fetchMock);
+
+    const results = await new MangaDexProvider().searchByMetadata(
+      { title: "Dragon.Ball.SD.T01.FRENCH.CBZ.eBook-Paprika+", author: null },
+      { ...config, provider: "mangadex" }
+    );
+
+    expect(results[0]).toMatchObject({ title: "Dragon Ball SD", sourceId: "dragon-ball-sd" });
+  });
+
+  it("reports MangaDex rate limits explicitly", async () => {
+    vi.stubGlobal("fetch", vi.fn(async () => jsonResponse({ errors: [{ detail: "Too many requests" }] }, 429)));
+
+    await expect(
+      new MangaDexProvider().searchByMetadata({ title: "Solo Leveling T03", author: null }, { ...config, provider: "mangadex" })
+    ).rejects.toMatchObject({ code: "rate-limit", status: 429 });
+  });
+
+  it("requires a Comic Vine API key before querying", async () => {
+    await expect(
+      new ComicVineProvider().searchByMetadata({ title: "Wolverine Origin", author: null }, { ...config, provider: "comicvine", apiKey: null })
+    ).rejects.toMatchObject({ code: "missing-key" });
+  });
+
+  it("queries Comic Vine volumes/issues and cleans HTML descriptions", async () => {
+    const fetchMock = vi.fn(async () =>
+      jsonResponse({
+        status_code: 1,
+        results: [
+          {
+            id: 123,
+            name: "Wolverine: The Origin",
+            description: "<p>Origin story &amp; family secrets.</p>",
+            start_year: "2001",
+            image: { super_url: "https://comicvine.gamespot.com/a/uploads/scale_large/origin.jpg" },
+            publisher: { name: "Marvel" }
+          }
+        ]
+      })
+    );
+    vi.stubGlobal("fetch", fetchMock);
+
+    const results = await new ComicVineProvider().searchByMetadata(
+      { title: "Comics.Fr.Wolverine.Origin.by.AleK.(emuleCenter.net)", author: null },
+      { ...config, provider: "comicvine", apiKey: "cv-key" }
+    );
+    const firstUrl = new URL(String((fetchMock.mock.calls[0] as unknown[])[0]));
+
+    expect(firstUrl.searchParams.get("resources")).toBe("volume");
+    expect(firstUrl.searchParams.get("query")).toBe("Comics Fr Wolverine Origin by AleK");
+    expect(results[0]).toMatchObject({
+      title: "Wolverine: The Origin",
+      description: "Origin story & family secrets.",
+      publishedDate: "2001",
+      publisher: "Marvel",
+      coverUrl: "https://comicvine.gamespot.com/a/uploads/scale_large/origin.jpg"
+    });
+  });
+
+  it("reports Comic Vine invalid keys and rate limits explicitly", async () => {
+    vi.stubGlobal("fetch", vi.fn(async () => jsonResponse({ status_code: 101, error: "Invalid API Key" })));
+    await expect(
+      new ComicVineProvider().searchByMetadata({ title: "Daredevil", author: null }, { ...config, provider: "comicvine", apiKey: "bad" })
+    ).rejects.toMatchObject({ code: "invalid-key" });
+
+    vi.stubGlobal("fetch", vi.fn(async () => jsonResponse({ error: "Rate limited" }, 429)));
+    await expect(
+      new ComicVineProvider().searchByMetadata({ title: "Daredevil", author: null }, { ...config, provider: "comicvine", apiKey: "ok" })
+    ).rejects.toMatchObject({ code: "rate-limit", status: 429 });
+  });
+
+  it("queries OpenLibrary by local metadata when ISBN is missing", async () => {
+    const fetchMock = vi.fn(async () =>
+      jsonResponse({
+        docs: [
+          {
+            title: "Harry Potter et le Prince de sang-mêlé",
+            author_name: ["J. K. Rowling"],
+            first_publish_year: 2005,
+            publisher: ["Gallimard jeunesse"],
+            cover_edition_key: "OL24333986M",
+            isbn: ["9782070612383"]
+          }
+        ]
+      })
+    );
+    vi.stubGlobal("fetch", fetchMock);
+
+    const result = await new OpenLibraryProvider().searchByMetadata(
+      { title: "Harry Potter et le Prince de Sang Mele", author: "J. K. Rowling", year: "2005" },
+      config
+    );
+    const url = new URL(String((fetchMock.mock.calls[0] as unknown[])[0]));
+
+    expect(url.searchParams.get("title")).toBe("Harry Potter et le Prince de Sang Mele");
+    expect(url.searchParams.get("author")).toBe("J. K. Rowling");
+    expect(result[0]).toMatchObject({
+      title: "Harry Potter et le Prince de sang-mêlé",
+      sourceId: "OL24333986M",
+      author: "J. K. Rowling",
+      publishedDate: "2005"
+    });
+  });
+
+  it("looks up OpenLibrary edition details from a search result source id", async () => {
+    const fetchMock = vi
+      .fn()
+      .mockResolvedValueOnce(
+        jsonResponse({
+          title: "Harry Potter et le prince de sang-mele",
+          authors: [{ key: "/authors/OL23919A" }],
+          languages: [{ key: "/languages/fre" }],
+          publishers: ["Gallimard jeunesse"],
+          publish_date: "2005",
+          isbn_13: ["9782070612383"],
+          description: { value: "Sixième année à Poudlard." }
+        })
+      )
+      .mockResolvedValueOnce(jsonResponse({ name: "J. K. Rowling" }));
+    vi.stubGlobal("fetch", fetchMock);
+
+    const result = await new OpenLibraryProvider().lookup({ ...lookup, sourceId: "OL24333986M", identifiers: { isbn10: null, isbn13: null, candidates: [] } }, config);
+
+    expect(String((fetchMock.mock.calls[0] as unknown[])[0])).toBe("https://openlibrary.org/books/OL24333986M.json");
+    expect(result).toMatchObject({
+      title: "Harry Potter et le prince de sang-mele",
+      author: "J. K. Rowling",
+      isbn: "9782070612383",
+      description: "Sixième année à Poudlard."
+    });
+  });
+
+  it("parses BnF SRU UNIMARC records returned for ISBN lookup", async () => {
+    vi.stubGlobal(
+      "fetch",
+      vi.fn(async () =>
+        textResponse(`<?xml version="1.0" encoding="UTF-8"?>
+          <srw:searchRetrieveResponse xmlns:srw="http://www.loc.gov/zing/srw/">
+            <srw:records><srw:record><srw:recordData>
+              <mxc:record xmlns:mxc="info:lc/xmlns/marcxchange-v2">
+                <mxc:datafield tag="073"><mxc:subfield code="a">9782070612376</mxc:subfield></mxc:datafield>
+                <mxc:datafield tag="101"><mxc:subfield code="a">fre</mxc:subfield></mxc:datafield>
+                <mxc:datafield tag="200">
+                  <mxc:subfield code="a">Harry Potter et la chambre des secrets</mxc:subfield>
+                  <mxc:subfield code="f">J. K. Rowling</mxc:subfield>
+                </mxc:datafield>
+                <mxc:datafield tag="210">
+                  <mxc:subfield code="c">Gallimard jeunesse</mxc:subfield>
+                  <mxc:subfield code="d">DL 2007</mxc:subfield>
+                </mxc:datafield>
+                <mxc:datafield tag="330"><mxc:subfield code="a">Résumé BnF.</mxc:subfield></mxc:datafield>
+              </mxc:record>
+            </srw:recordData></srw:record></srw:records>
+          </srw:searchRetrieveResponse>`)
+      )
+    );
+
+    const result = await new BnfProvider().lookup(lookup, { ...config, provider: "bnf" });
+
+    expect(result).toMatchObject({
+      title: "Harry Potter et la chambre des secrets",
+      author: "J. K. Rowling",
+      publisher: "Gallimard jeunesse",
+      publishedDate: "2007",
+      isbn: "9782070612376"
+    });
+  });
+
+  it("prefers BnF title search records with a valid book ISBN over non-book EAN records", async () => {
+    vi.stubGlobal(
+      "fetch",
+      vi.fn(async () =>
+        textResponse(`<?xml version="1.0" encoding="UTF-8"?>
+          <srw:searchRetrieveResponse xmlns:srw="http://www.loc.gov/zing/srw/">
+            <srw:records>
+              <srw:record><srw:recordData>
+                <mxc:record xmlns:mxc="info:lc/xmlns/marcxchange-v2">
+                  <mxc:datafield tag="073"><mxc:subfield code="a">5030931067112</mxc:subfield></mxc:datafield>
+                  <mxc:datafield tag="200"><mxc:subfield code="a">Harry Potter et le prince de sang-mêlé</mxc:subfield><mxc:subfield code="f">Electronic arts</mxc:subfield></mxc:datafield>
+                </mxc:record>
+              </srw:recordData></srw:record>
+              <srw:record><srw:recordData>
+                <mxc:record xmlns:mxc="info:lc/xmlns/marcxchange-v2">
+                  <mxc:datafield tag="010"><mxc:subfield code="a">274419736X</mxc:subfield></mxc:datafield>
+                  <mxc:datafield tag="200"><mxc:subfield code="a">Harry Potter et le prince de sang-mêlé</mxc:subfield><mxc:subfield code="f">J. K. Rowling</mxc:subfield></mxc:datafield>
+                </mxc:record>
+              </srw:recordData></srw:record>
+            </srw:records>
+          </srw:searchRetrieveResponse>`)
+      )
+    );
+
+    const result = await new BnfProvider().searchByMetadata(
+      { title: "Harry Potter et le prince de sang mele", author: null },
+      { ...config, provider: "bnf" }
+    );
+
+    expect(result[0]).toMatchObject({
+      author: "J. K. Rowling",
+      isbn: "274419736X"
+    });
+    expect(result[1]?.isbn).toBeNull();
+  });
+});
+
+function jsonResponse(body: unknown, status = 200): Response {
+  return new Response(JSON.stringify(body), { status, headers: { "content-type": "application/json" } });
+}
+
+function textResponse(body: string, status = 200): Response {
+  return new Response(body, { status, headers: { "content-type": "application/xml" } });
+}

apps/api/src/metadata/metadata.module.ts

@@ -0,0 +1,16 @@
+import { Module } from "@nestjs/common";
+import { DatabaseModule } from "../database/database.module.js";
+import { BnfProvider } from "./adapters/bnf.provider.js";
+import { ComicVineProvider } from "./adapters/comic-vine.provider.js";
+import { GoogleBooksProvider } from "./adapters/google-books.provider.js";
+import { LocalMetadataProvider } from "./adapters/local.provider.js";
+import { MangaDexProvider } from "./adapters/mangadex.provider.js";
+import { OpenLibraryProvider } from "./adapters/open-library.provider.js";
+import { MetadataService } from "./metadata.service.js";
+
+@Module({
+  imports: [DatabaseModule],
+  providers: [MetadataService, LocalMetadataProvider, OpenLibraryProvider, GoogleBooksProvider, BnfProvider, MangaDexProvider, ComicVineProvider],
+  exports: [MetadataService]
+})
+export class MetadataModule {}

apps/api/src/metadata/metadata.service.test.ts

@@ -0,0 +1,923 @@
+import { existsSync, mkdirSync, mkdtempSync, rmSync } from "node:fs";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
+import AdmZip from "adm-zip";
+import { afterEach, describe, expect, it, vi } from "vitest";
+import { DatabaseService } from "../database/database.service.js";
+import { books, libraries } from "../database/schema.js";
+import { BookMetadata } from "../scanner/metadata.js";
+import { MetadataProviderRequestError } from "./adapters/provider-fetch.js";
+import { MetadataService } from "./metadata.service.js";
+import { MetadataLookup, MetadataMatch, MetadataProvider, MetadataProviderConfig, MetadataSearchQuery } from "./metadata.types.js";
+
+const previousDatabasePath = process.env.DATABASE_PATH;
+const previousStorageDir = process.env.STORAGE_DIR;
+const tempDirs: string[] = [];
+
+afterEach(() => {
+  process.env.DATABASE_PATH = previousDatabasePath;
+  process.env.STORAGE_DIR = previousStorageDir;
+  vi.restoreAllMocks();
+  for (const dir of tempDirs.splice(0)) {
+    rmSync(dir, { recursive: true, force: true });
+  }
+});
+
+describe("MetadataService", () => {
+  it.runIf(canLoadBetterSqlite())("backfills description from provider lookup after a metadata search hit yields an ISBN", async () => {
+    const database = createDatabase();
+    const localProvider = providerStub("local");
+    const openLibrarySearch = vi.fn<(_: MetadataSearchQuery, __: MetadataProviderConfig) => Promise<MetadataMatch[]>>(async () => [
+      {
+        title: "Harry Potter et le Prince de sang-mêlé",
+        author: "J. K. Rowling",
+        isbn: "9782070612383",
+        publishedDate: "2005"
+      }
+    ]);
+    const openLibraryLookup = vi.fn<(_: MetadataLookup, __: MetadataProviderConfig) => Promise<MetadataMatch | null>>(async (lookup) => {
+      if (lookup.identifiers.isbn13 !== "9782070612383") return null;
+      return {
+        title: "Harry Potter et le Prince de sang-mêlé",
+        author: "J. K. Rowling",
+        isbn: "9782070612383",
+        publishedDate: "2005",
+        description: "Harry Potter découvre l'héritage du Prince de Sang-Mêlé."
+      };
+    });
+    const openLibraryProvider: MetadataProvider = {
+      id: "openlibrary",
+      searchByMetadata: openLibrarySearch,
+      lookup: openLibraryLookup
+    };
+    const service = new MetadataService(
+      database,
+      localProvider as never,
+      openLibraryProvider as never,
+      providerStub("googlebooks") as never,
+      providerStub("bnf") as never,
+      providerStub("mangadex") as never,
+      providerStub("comicvine") as never
+    );
+    const localMetadata: BookMetadata = {
+      title: "Harry Potter et le Prince de Sang Mele",
+      author: "J. K. Rowling",
+      description: null,
+      isbn: null,
+      language: null,
+      publisher: null,
+      publishedDate: null,
+      coverPath: null
+    };
+
+    const result = await service.enrichMetadata(localMetadata, "/library/HP/Harry Potter et le Prince de Sang Mele.epub", {
+      remote: true
+    });
+
+    expect(openLibrarySearch).toHaveBeenCalledOnce();
+    expect(openLibraryLookup).toHaveBeenCalledOnce();
+    expect(openLibraryLookup.mock.calls[0]?.[0].identifiers.isbn13).toBe("9782070612383");
+    expect(result).toMatchObject({
+      title: "Harry Potter et le Prince de Sang Mele",
+      isbn: "9782070612383",
+      isbn13: "9782070612383",
+      description: "Harry Potter découvre l'héritage du Prince de Sang-Mêlé."
+    });
+
+    database.onModuleDestroy();
+  });
+
+  it.runIf(canLoadBetterSqlite())("continues enrichment after a provider DNS failure and logs the failure class", async () => {
+    const database = createDatabase();
+    database.sqlite.prepare("UPDATE metadata_source_config SET enabled = 1 WHERE provider = 'googlebooks'").run();
+    const warn = vi.spyOn(console, "warn").mockImplementation(() => undefined);
+    const openLibraryProvider: MetadataProvider = {
+      id: "openlibrary",
+      lookup: async () => null,
+      searchByMetadata: async () => {
+        throw new MetadataProviderRequestError("openlibrary", "dns", "EAI_AGAIN");
+      }
+    };
+    const googleProvider: MetadataProvider = {
+      id: "googlebooks",
+      lookup: async () => null,
+      searchByMetadata: async () => [
+        {
+          title: "Daredevil",
+          author: "Roy Thomas",
+          description: "Daredevil keeps moving even when another provider is unreachable.",
+          publishedDate: "2019"
+        }
+      ]
+    };
+    const service = new MetadataService(
+      database,
+      providerStub("local") as never,
+      openLibraryProvider as never,
+      googleProvider as never,
+      providerStub("bnf") as never,
+      providerStub("mangadex") as never,
+      providerStub("comicvine") as never
+    );
+
+    const result = await service.enrichMetadata(
+      {
+        title: "Daredevil",
+        author: null,
+        description: null,
+        isbn: null,
+        language: null,
+        publisher: null,
+        publishedDate: null,
+        coverPath: null
+      },
+      "/library/Daredevil.cbz",
+      { remote: true }
+    );
+
+    expect(warn).toHaveBeenCalledWith('[metadata] Provider openlibrary failed for "Daredevil": dns: EAI_AGAIN');
+    expect(result).toMatchObject({
+      title: "Daredevil",
+      author: "Roy Thomas",
+      description: "Daredevil keeps moving even when another provider is unreachable."
+    });
+
+    database.onModuleDestroy();
+  });
+
+  it.runIf(canLoadBetterSqlite())("looks up details from a title search hit even when the hit has no ISBN", async () => {
+    const database = createDatabase();
+    const localProvider = providerStub("local");
+    const openLibrarySearch = vi.fn<(_: MetadataSearchQuery, __: MetadataProviderConfig) => Promise<MetadataMatch[]>>(async () => [
+      {
+        title: "Harry Potter et le prince de sang-mele",
+        sourceId: "OL24333986M",
+        publishedDate: "2005"
+      }
+    ]);
+    const openLibraryLookup = vi.fn<(_: MetadataLookup, __: MetadataProviderConfig) => Promise<MetadataMatch | null>>(async (lookup) => {
+      if (lookup.sourceId !== "OL24333986M") return null;
+      return {
+        title: "Harry Potter et le prince de sang-mêlé",
+        author: "J. K. Rowling",
+        isbn: "9782070612383",
+        publishedDate: "2005",
+        description: "Sixième année à Poudlard."
+      };
+    });
+    const openLibraryProvider: MetadataProvider = {
+      id: "openlibrary",
+      searchByMetadata: openLibrarySearch,
+      lookup: openLibraryLookup
+    };
+    const service = new MetadataService(
+      database,
+      localProvider as never,
+      openLibraryProvider as never,
+      providerStub("googlebooks") as never,
+      providerStub("bnf") as never,
+      providerStub("mangadex") as never,
+      providerStub("comicvine") as never
+    );
+    const localMetadata: BookMetadata = {
+      title: "Harry Potter et le prince de sang mele",
+      author: null,
+      description: null,
+      isbn: null,
+      language: null,
+      publisher: null,
+      publishedDate: null,
+      coverPath: null
+    };
+
+    const result = await service.enrichMetadata(localMetadata, "/library/Harry Potter et le prince de sang mele.epub", {
+      remote: true
+    });
+
+    expect(openLibrarySearch).toHaveBeenCalledOnce();
+    expect(openLibraryLookup).toHaveBeenCalledOnce();
+    expect(openLibraryLookup.mock.calls[0]?.[0].sourceId).toBe("OL24333986M");
+    expect(result).toMatchObject({
+      title: "Harry Potter et le prince de sang mele",
+      author: "J. K. Rowling",
+      isbn: "9782070612383",
+      isbn13: "9782070612383",
+      description: "Sixième année à Poudlard."
+    });
+
+    database.onModuleDestroy();
+  });
+
+  it.runIf(canLoadBetterSqlite())("backfills a missing ISBN lookup description from a high-confidence title search", async () => {
+    const database = createDatabase();
+    const openLibraryProvider: MetadataProvider = {
+      id: "openlibrary",
+      lookup: async () => ({
+        title: "Harry Potter et la coupe de feu",
+        author: "J. K. Rowling",
+        isbn: "9782070624553",
+        publisher: "Gallimard",
+        publishedDate: "2016"
+      }),
+      searchByMetadata: async () => [
+        {
+          title: "Harry Potter et la coupe de feu",
+          author: "J. K. Rowling",
+          isbn: "9782070619207",
+          description: "Harry est invité à assister à la Coupe du monde de Quidditch."
+        }
+      ]
+    };
+    const service = new MetadataService(
+      database,
+      providerStub("local") as never,
+      openLibraryProvider as never,
+      providerStub("googlebooks") as never,
+      providerStub("bnf") as never,
+      providerStub("mangadex") as never,
+      providerStub("comicvine") as never
+    );
+
+    const result = await service.enrichMetadata(
+      {
+        title: "Harry Potter et la coupe de feu",
+        author: "J. K. Rowling",
+        description: null,
+        isbn: "9782070624553",
+        language: null,
+        publisher: null,
+        publishedDate: null,
+        coverPath: "/covers/local.jpg"
+      },
+      "/library/Harry Potter et la coupe de feu.epub",
+      { remote: true }
+    );
+
+    expect(result).toMatchObject({
+      isbn: "9782070624553",
+      description: "Harry est invité à assister à la Coupe du monde de Quidditch.",
+      coverPath: "/covers/local.jpg"
+    });
+
+    database.onModuleDestroy();
+  });
+
+  it.runIf(canLoadBetterSqlite())("uses provider priority as the tie-breaker for high-confidence title matches", async () => {
+    const database = createDatabase();
+    database.sqlite.prepare("UPDATE metadata_source_config SET enabled = 1 WHERE provider = 'bnf'").run();
+    const openLibraryProvider: MetadataProvider = {
+      id: "openlibrary",
+      lookup: async () => null,
+      searchByMetadata: async () => [
+        {
+          title: "Daredevil",
+          author: "Rosemary Carter",
+          isbn: "9780373105601",
+          publisher: "Harlequin Books",
+          publishedDate: "1982"
+        }
+      ]
+    };
+    const bnfProvider: MetadataProvider = {
+      id: "bnf",
+      lookup: async () => null,
+      searchByMetadata: async () => [
+        {
+          title: "Daredevil",
+          author: "scénario, Roy Thomas, Gary Friedrich",
+          isbn: "9782809476255",
+          description: "Daredevil affronte l'Homme aux échasses.",
+          language: "fre",
+          publisher: "Panini comics",
+          publishedDate: "2019"
+        }
+      ]
+    };
+    const service = new MetadataService(
+      database,
+      providerStub("local") as never,
+      openLibraryProvider as never,
+      providerStub("googlebooks") as never,
+      bnfProvider as never,
+      providerStub("mangadex") as never,
+      providerStub("comicvine") as never
+    );
+    const localMetadata: BookMetadata = {
+      title: "Daredevil",
+      author: null,
+      description: null,
+      isbn: null,
+      language: null,
+      publisher: null,
+      publishedDate: null,
+      coverPath: null
+    };
+
+    const result = await service.enrichMetadata(localMetadata, "/library/Daredevil.cbz", { remote: true });
+
+    expect(result).toMatchObject({
+      title: "Daredevil",
+      author: "Rosemary Carter",
+      isbn: "9780373105601",
+      isbn13: "9780373105601",
+      description: "Daredevil affronte l'Homme aux échasses."
+    });
+
+    database.onModuleDestroy();
+  });
+
+  it.runIf(canLoadBetterSqlite())("re-enriches from stored local hints instead of a previously failed remote ISBN", async () => {
+    const database = createDatabase();
+    const now = database.now();
+    const library = database.db
+      .insert(libraries)
+      .values({ name: "Comics", path: "/library", enabled: true, createdAt: now, updatedAt: now })
+      .returning()
+      .get();
+    const localMetadataJson = JSON.stringify({
+      title: "Daredevil",
+      author: null,
+      year: null,
+      isbn: null,
+      fileTitle: "Daredevil",
+      raw: { title: "Daredevil", author: null, publishedDate: null, fileName: "Daredevil" }
+    });
+    const book = database.db
+      .insert(books)
+      .values({
+        libraryId: library.id,
+        title: "Daredevil",
+        author: "Rosemary Carter",
+        description: null,
+        isbn: "9780373105601",
+        isbn13: "9780373105601",
+        identifiersJson: JSON.stringify({ isbn10: null, isbn13: null, candidates: [] }),
+        localMetadataJson,
+        language: null,
+        publisher: "Harlequin Books",
+        publishedDate: "1982",
+        format: "cbz",
+        filePath: "/library/Daredevil.cbz",
+        coverPath: "/covers/daredevil.jpg",
+        scanStatus: "succeeded",
+        enrichmentStatus: "failed",
+        fileSize: 42,
+        fileMtime: now,
+        createdAt: now,
+        updatedAt: now
+      })
+      .returning()
+      .get();
+    const openLibraryLookup = vi.fn<(_: MetadataLookup, __: MetadataProviderConfig) => Promise<MetadataMatch | null>>(async () => null);
+    const bnfSearch = vi.fn<(_: MetadataSearchQuery, __: MetadataProviderConfig) => Promise<MetadataMatch[]>>(async () => [
+      {
+        title: "Daredevil",
+        author: "scénario, Roy Thomas, Gary Friedrich",
+        isbn: "9782809476255",
+        description: "Daredevil affronte l'Homme aux échasses.",
+        publisher: "Panini comics",
+        publishedDate: "2019"
+      }
+    ]);
+    database.sqlite.prepare("UPDATE metadata_source_config SET enabled = 1 WHERE provider = 'bnf'").run();
+    const service = new MetadataService(
+      database,
+      providerStub("local") as never,
+      { id: "openlibrary", lookup: openLibraryLookup, searchByMetadata: async () => [] } as never,
+      providerStub("googlebooks") as never,
+      { id: "bnf", lookup: async () => null, searchByMetadata: bnfSearch } as never,
+      providerStub("mangadex") as never,
+      providerStub("comicvine") as never
+    );
+
+    const result = await service.enrichBook(book.id);
+
+    expect(openLibraryLookup).not.toHaveBeenCalled();
+    expect(bnfSearch.mock.calls[0]?.[0].title).toBe("Daredevil");
+    expect(result).toMatchObject({
+      author: "Rosemary Carter",
+      isbn: "9780373105601",
+      isbn13: "9780373105601",
+      publisher: "Harlequin Books",
+      coverPath: "/covers/daredevil.jpg"
+    });
+
+    database.onModuleDestroy();
+  });
+
+  it.runIf(canLoadBetterSqlite())("stores provider covers as local bytes and exposes field provenance with metadata status", async () => {
+    const database = createDatabase();
+    const fetchMock = vi.spyOn(globalThis, "fetch").mockResolvedValue({
+      ok: true,
+      headers: new Headers({ "content-type": "image/jpeg" }),
+      arrayBuffer: async () => new Uint8Array([1, 2, 3, 4]).buffer
+    } as Response);
+    const openLibraryProvider: MetadataProvider = {
+      id: "openlibrary",
+      lookup: async () => null,
+      searchByMetadata: async () => [
+        {
+          title: "Daredevil",
+          author: "Roy Thomas",
+          description: "Daredevil affronte une nouvelle menace.",
+          isbn: "9782809476255",
+          coverUrl: "https://covers.openlibrary.org/b/id/123-L.jpg"
+        }
+      ]
+    };
+    const service = new MetadataService(
+      database,
+      providerStub("local") as never,
+      openLibraryProvider as never,
+      providerStub("googlebooks") as never,
+      providerStub("bnf") as never,
+      providerStub("mangadex") as never,
+      providerStub("comicvine") as never
+    );
+
+    const result = await service.enrichMetadata(
+      {
+        title: "Daredevil",
+        author: null,
+        description: null,
+        isbn: null,
+        language: null,
+        publisher: null,
+        publishedDate: null,
+        coverPath: null
+      },
+      "/library/Daredevil.cbz",
+      { remote: true }
+    );
+
+    expect(fetchMock).toHaveBeenCalledWith("https://covers.openlibrary.org/b/id/123-L.jpg", expect.any(Object));
+    expect(result.coverPath).toMatch(/storage\/covers\/.+\.jpg$/);
+    expect(result.metadataStatus).toBe("enriched");
+    expect(JSON.parse(result.metadataProvenanceJson)).toMatchObject({
+      title: "local",
+      author: "openlibrary",
+      description: "openlibrary",
+      coverPath: "openlibrary"
+    });
+
+    database.onModuleDestroy();
+  });
+
+  it.runIf(canLoadBetterSqlite())("retrofits a local cover for an existing book during metadata enrichment", async () => {
+    const database = createDatabase();
+    mkdirSync(database.config.storageDir, { recursive: true });
+    const filePath = join(database.config.storageDir, "Demon.Slayer.School.Days.T01.FRENCH.CBZ");
+    const zip = new AdmZip();
+    zip.addFile("001.jpg", Buffer.from([0xff, 0xd8, 0xff, 0xd9]));
+    zip.writeZip(filePath);
+    const now = database.now();
+    const library = database.db
+      .insert(libraries)
+      .values({ name: "Comics", path: database.config.storageDir, enabled: true, createdAt: now, updatedAt: now })
+      .returning()
+      .get();
+    const book = database.db
+      .insert(books)
+      .values({
+        libraryId: library.id,
+        title: "Demon.Slayer.School.Days.T01.FRENCH.CBZ. -ebdz",
+        author: null,
+        description: null,
+        isbn: null,
+        isbn13: null,
+        identifiersJson: JSON.stringify({ isbn10: null, isbn13: null, candidates: [] }),
+        localMetadataJson: JSON.stringify({
+          title: "Demon Slayer School Days T01 FRENCH",
+          author: null,
+          year: null,
+          isbn: null,
+          fileTitle: "Demon Slayer School Days T01 FRENCH",
+          raw: { title: "Demon.Slayer.School.Days.T01.FRENCH.CBZ. -ebdz", author: null, publishedDate: null, fileName: "Demon.Slayer.School.Days.T01.FRENCH.CBZ. -ebdz" }
+        }),
+        language: null,
+        publisher: null,
+        publishedDate: null,
+        format: "cbz",
+        filePath,
+        coverPath: null,
+        metadataStatus: "none",
+        metadataProvenanceJson: JSON.stringify({ title: "local" }),
+        scanStatus: "succeeded",
+        enrichmentStatus: "succeeded",
+        fileSize: 42,
+        fileMtime: now,
+        createdAt: now,
+        updatedAt: now
+      })
+      .returning()
+      .get();
+    const service = new MetadataService(
+      database,
+      providerStub("local") as never,
+      providerStub("openlibrary") as never,
+      providerStub("googlebooks") as never,
+      providerStub("bnf") as never,
+      providerStub("mangadex") as never,
+      providerStub("comicvine") as never
+    );
+
+    const result = await service.enrichBook(book.id);
+
+    expect(result.coverPath).toMatch(/covers\/[a-f0-9]+\.jpg$/);
+    expect(result.coverPath && existsSync(result.coverPath)).toBe(true);
+    expect(result.metadataStatus).toBe("partial");
+    expect(JSON.parse(result.metadataProvenanceJson ?? "{}")).toMatchObject({ coverPath: "local" });
+
+    database.onModuleDestroy();
+  });
+
+  it.runIf(canLoadBetterSqlite())("drops sentinel publication dates from provider matches for real affected titles", async () => {
+    const database = createDatabase();
+    const openLibraryProvider: MetadataProvider = {
+      id: "openlibrary",
+      lookup: async () => null,
+      searchByMetadata: async () => [
+        {
+          title: "Harry Potter et les reliques de la mort",
+          author: "J. K. Rowling",
+          publishedDate: "0101-01-01T00:00:00+00:00",
+          description: "Septième année."
+        }
+      ]
+    };
+    const service = new MetadataService(
+      database,
+      providerStub("local") as never,
+      openLibraryProvider as never,
+      providerStub("googlebooks") as never,
+      providerStub("bnf") as never,
+      providerStub("mangadex") as never,
+      providerStub("comicvine") as never
+    );
+
+    const result = await service.enrichMetadata(
+      {
+        title: "Harry Potter et les reliques de la mort",
+        author: "J. K. Rowling",
+        description: null,
+        isbn: null,
+        language: null,
+        publisher: null,
+        publishedDate: null,
+        coverPath: null
+      },
+      "/library/Harry Potter et les reliques de la mort.epub",
+      { remote: true }
+    );
+
+    expect(result.publishedDate).toBeNull();
+
+    database.onModuleDestroy();
+  });
+
+  it.runIf(canLoadBetterSqlite())("does not overwrite an existing valid date with a provider sentinel", async () => {
+    const database = createDatabase();
+    const now = database.now();
+    const library = database.db
+      .insert(libraries)
+      .values({ name: "Novels", path: "/library", enabled: true, createdAt: now, updatedAt: now })
+      .returning()
+      .get();
+    const book = database.db
+      .insert(books)
+      .values({
+        libraryId: library.id,
+        title: "Lord of the Mysteries",
+        author: "Cuttlefish That Loves Diving",
+        description: null,
+        isbn: null,
+        isbn13: null,
+        identifiersJson: JSON.stringify({ isbn10: null, isbn13: null, candidates: [] }),
+        localMetadataJson: JSON.stringify({
+          title: "Lord of the Mysteries",
+          author: "Cuttlefish That Loves Diving",
+          year: null,
+          isbn: null,
+          fileTitle: "Lord of the Mysteries",
+          raw: { title: "Lord of the Mysteries", author: "Cuttlefish That Loves Diving", publishedDate: null, fileName: "Lord of the Mysteries" }
+        }),
+        language: null,
+        publisher: null,
+        publishedDate: "2018",
+        format: "epub",
+        filePath: "/library/Lord of the Mysteries.epub",
+        coverPath: null,
+        metadataStatus: "partial",
+        metadataProvenanceJson: JSON.stringify({ publishedDate: "existing" }),
+        scanStatus: "succeeded",
+        enrichmentStatus: "succeeded",
+        fileSize: 42,
+        fileMtime: now,
+        createdAt: now,
+        updatedAt: now
+      })
+      .returning()
+      .get();
+    const openLibraryProvider: MetadataProvider = {
+      id: "openlibrary",
+      lookup: async () => null,
+      searchByMetadata: async () => [
+        {
+          title: "Lord of the Mysteries",
+          author: "Cuttlefish That Loves Diving",
+          publishedDate: "0101-01-01T00:00:00+00:00",
+          description: "A mysterious sequence begins."
+        }
+      ]
+    };
+    const service = new MetadataService(
+      database,
+      providerStub("local") as never,
+      openLibraryProvider as never,
+      providerStub("googlebooks") as never,
+      providerStub("bnf") as never,
+      providerStub("mangadex") as never,
+      providerStub("comicvine") as never
+    );
+
+    const result = await service.enrichBook(book.id);
+
+    expect(result.publishedDate).toBe("2018");
+
+    database.onModuleDestroy();
+  });
+
+  it.runIf(canLoadBetterSqlite())("records MangaDex provenance and stores its cover locally", async () => {
+    const database = createDatabase();
+    const fetchMock = vi.spyOn(globalThis, "fetch").mockResolvedValue({
+      ok: true,
+      headers: new Headers({ "content-type": "image/jpeg" }),
+      arrayBuffer: async () => new Uint8Array([9, 8, 7]).buffer
+    } as Response);
+    const mangaDexProvider: MetadataProvider = {
+      id: "mangadex",
+      lookup: async () => null,
+      searchByMetadata: async () => [
+        {
+          title: "Solo Leveling",
+          author: "Chugong",
+          description: "A hunter levels up alone.",
+          publishedDate: "2018",
+          coverUrl: "https://uploads.mangadex.org/covers/manga-1/cover.jpg.512.jpg"
+        }
+      ]
+    };
+    const service = new MetadataService(
+      database,
+      providerStub("local") as never,
+      providerStub("openlibrary") as never,
+      providerStub("googlebooks") as never,
+      providerStub("bnf") as never,
+      mangaDexProvider as never,
+      providerStub("comicvine") as never
+    );
+
+    const result = await service.enrichMetadata(
+      {
+        title: "Solo Leveling T03",
+        author: null,
+        description: null,
+        isbn: null,
+        language: null,
+        publisher: null,
+        publishedDate: null,
+        coverPath: null
+      },
+      "/library/Solo Leveling T03.cbz",
+      { remote: true }
+    );
+
+    expect(fetchMock).toHaveBeenCalledWith("https://uploads.mangadex.org/covers/manga-1/cover.jpg.512.jpg", expect.any(Object));
+    expect(JSON.parse(result.metadataProvenanceJson)).toMatchObject({
+      author: "mangadex",
+      description: "mangadex",
+      publishedDate: "mangadex",
+      coverPath: "mangadex"
+    });
+    expect(result.coverPath).toMatch(/storage\/covers\/.+\.jpg$/);
+
+    database.onModuleDestroy();
+  });
+
+  it.runIf(canLoadBetterSqlite())("scores MangaDex matches against the cleaned series title instead of the noisy archive title", async () => {
+    const database = createDatabase();
+    const mangaDexProvider: MetadataProvider = {
+      id: "mangadex",
+      lookup: async () => null,
+      searchByMetadata: async () => [
+        {
+          title: "Dragon Ball SD",
+          author: "Naho Ooishi",
+          description: "A super-deformed Dragon Ball spin-off.",
+          publishedDate: "2010",
+          sourceId: "dragon-ball-sd"
+        }
+      ]
+    };
+    const service = new MetadataService(
+      database,
+      providerStub("local") as never,
+      providerStub("openlibrary") as never,
+      providerStub("googlebooks") as never,
+      providerStub("bnf") as never,
+      mangaDexProvider as never,
+      providerStub("comicvine") as never
+    );
+
+    const result = await service.enrichMetadata(
+      {
+        title: "Dragon.Ball.SD.T01.FRENCH.CBZ.eBook-Paprika+",
+        author: null,
+        description: null,
+        isbn: null,
+        language: null,
+        publisher: null,
+        publishedDate: null,
+        coverPath: null
+      },
+      "/library/Dragon.Ball.SD.T01.FRENCH.CBZ.eBook-Paprika+.cbz",
+      { remote: true }
+    );
+
+    expect(result).toMatchObject({
+      title: "Dragon Ball SD",
+      author: "Naho Ooishi",
+      description: "A super-deformed Dragon Ball spin-off.",
+      publishedDate: "2010"
+    });
+    expect(JSON.parse(result.metadataProvenanceJson)).toMatchObject({
+      title: "local",
+      author: "mangadex",
+      description: "mangadex"
+    });
+
+    database.onModuleDestroy();
+  });
+
+  it.runIf(canLoadBetterSqlite())("accepts MangaDex alias matches through the provider score title", async () => {
+    const database = createDatabase();
+    const mangaDexProvider: MetadataProvider = {
+      id: "mangadex",
+      lookup: async () => null,
+      searchByMetadata: async () => [
+        {
+          title: "Demon Slayer: Kimetsu Academy",
+          scoreTitle: "Demon Slayer Kimetsu Academy",
+          author: "Natsuki Hokami",
+          description: "School spin-off.",
+          publishedDate: "2021",
+          sourceId: "kimetsu-academy"
+        }
+      ]
+    };
+    const service = new MetadataService(
+      database,
+      providerStub("local") as never,
+      providerStub("openlibrary") as never,
+      providerStub("googlebooks") as never,
+      providerStub("bnf") as never,
+      mangaDexProvider as never,
+      providerStub("comicvine") as never
+    );
+
+    const result = await service.enrichMetadata(
+      {
+        title: "Demon.Slayer.School.Days.T01.FRENCH.CBZ. -ebdz",
+        author: null,
+        description: null,
+        isbn: null,
+        language: null,
+        publisher: null,
+        publishedDate: null,
+        coverPath: null
+      },
+      "/library/Demon.Slayer.School.Days.T01.FRENCH.CBZ. -ebdz.cbz",
+      { remote: true }
+    );
+
+    expect(result).toMatchObject({
+      title: "Demon Slayer School Days",
+      author: "Natsuki Hokami",
+      description: "School spin-off.",
+      publishedDate: "2021"
+    });
+
+    database.onModuleDestroy();
+  });
+
+  it.runIf(canLoadBetterSqlite())("re-enriches existing manga with the cleaned series title on the live book path", async () => {
+    const database = createDatabase();
+    mkdirSync(database.config.storageDir, { recursive: true });
+    const filePath = join(database.config.storageDir, "Demon.Slayer.School.Days.T01.FRENCH.CBZ. -ebdz.cbz");
+    const zip = new AdmZip();
+    zip.addFile("001.jpg", Buffer.from([0xff, 0xd8, 0xff, 0xd9]));
+    zip.writeZip(filePath);
+    const now = database.now();
+    const library = database.db
+      .insert(libraries)
+      .values({ name: "Manga", path: database.config.storageDir, enabled: true, createdAt: now, updatedAt: now })
+      .returning()
+      .get();
+    const book = database.db
+      .insert(books)
+      .values({
+        libraryId: library.id,
+        title: "Demon.Slayer.School.Days.T01.FRENCH.CBZ. -ebdz",
+        author: null,
+        description: null,
+        isbn: null,
+        isbn13: null,
+        identifiersJson: JSON.stringify({ isbn10: null, isbn13: null, candidates: [] }),
+        localMetadataJson: JSON.stringify({
+          title: "Demon Slayer School Days T01 FRENCH",
+          author: null,
+          year: null,
+          isbn: null,
+          fileTitle: "Demon Slayer School Days T01 FRENCH",
+          raw: {
+            title: "Demon.Slayer.School.Days.T01.FRENCH.CBZ. -ebdz",
+            author: null,
+            publishedDate: null,
+            fileName: "Demon.Slayer.School.Days.T01.FRENCH.CBZ. -ebdz"
+          }
+        }),
+        language: null,
+        publisher: null,
+        publishedDate: null,
+        format: "cbz",
+        filePath,
+        coverPath: null,
+        metadataStatus: "none",
+        metadataProvenanceJson: JSON.stringify({ title: "local" }),
+        scanStatus: "succeeded",
+        enrichmentStatus: "succeeded",
+        fileSize: 42,
+        fileMtime: now,
+        createdAt: now,
+        updatedAt: now
+      })
+      .returning()
+      .get();
+    const mangaDexSearch = vi.fn<(_: MetadataSearchQuery, __: MetadataProviderConfig) => Promise<MetadataMatch[]>>(async () => [
+      {
+        title: "Demon Slayer School Days",
+        author: "Natsuki Hokami",
+        description: "School spin-off.",
+        publishedDate: "2021",
+        sourceId: "demon-slayer-school-days"
+      }
+    ]);
+    const service = new MetadataService(
+      database,
+      providerStub("local") as never,
+      providerStub("openlibrary") as never,
+      providerStub("googlebooks") as never,
+      providerStub("bnf") as never,
+      { id: "mangadex", lookup: async () => null, searchByMetadata: mangaDexSearch } as never,
+      providerStub("comicvine") as never
+    );
+
+    const result = await service.enrichBook(book.id);
+
+    expect(mangaDexSearch.mock.calls[0]?.[0].title).toBe("Demon Slayer School Days");
+    expect(result).toMatchObject({
+      title: "Demon Slayer School Days",
+      author: "Natsuki Hokami",
+      description: "School spin-off.",
+      publishedDate: "2021"
+    });
+
+    database.onModuleDestroy();
+  });
+});
+
+function createDatabase(): DatabaseService {
+  const dir = mkdtempSync(join(tmpdir(), "readabook-metadata-service-"));
+  tempDirs.push(dir);
+  process.env.DATABASE_PATH = join(dir, "readabook.sqlite");
+  process.env.STORAGE_DIR = join(dir, "storage");
+  return new DatabaseService();
+}
+
+function providerStub(id: MetadataProvider["id"]): MetadataProvider {
+  return {
+    id,
+    lookup: async () => null,
+    searchByMetadata: async () => []
+  };
+}
+
+function canLoadBetterSqlite(): boolean {
+  try {
+    const database = createDatabase();
+    database.onModuleDestroy();
+    return true;
+  } catch {
+    return false;
+  }
+}

apps/api/src/metadata/metadata.service.ts

@@ -0,0 +1,627 @@
+import { BadRequestException, Injectable, NotFoundException } from "@nestjs/common";
+import { createHash } from "node:crypto";
+import { existsSync, mkdirSync, writeFileSync } from "node:fs";
+import { dirname, extname, join } from "node:path";
+import { eq } from "drizzle-orm";
+import {
+  MetadataSourcesConfigDto,
+  UpdateMetadataSourcesConfigDto
+} from "@readabook/shared";
+import { DatabaseService } from "../database/database.service.js";
+import { automationSettings, books, metadataSourceConfig, series } from "../database/schema.js";
+import { BookMetadata, extractMetadata } from "../scanner/metadata.js";
+import { BnfProvider } from "./adapters/bnf.provider.js";
+import { ComicVineProvider } from "./adapters/comic-vine.provider.js";
+import { GoogleBooksProvider } from "./adapters/google-books.provider.js";
+import { LocalMetadataProvider } from "./adapters/local.provider.js";
+import { MangaDexProvider } from "./adapters/mangadex.provider.js";
+import { OpenLibraryProvider } from "./adapters/open-library.provider.js";
+import { describeMetadataProviderError, providerFetch } from "./adapters/provider-fetch.js";
+import {
+  BookIdentifiers,
+  LocalMetadataHints,
+  MetadataField,
+  MetadataMatch,
+  MetadataProvider,
+  MetadataProviderConfig,
+  MetadataProviderId,
+  MetadataProvenance,
+  MetadataSearchQuery,
+  MetadataStatus
+} from "./metadata.types.js";
+import { ExtractIdentifiers, toIsbn13 } from "./use-cases/extract-identifiers.js";
+import { ExtractLocalMetadataHints } from "./use-cases/extract-local-metadata-hints.js";
+import { extractSeriesVolume } from "./use-cases/extract-series-volume.js";
+import { normalizePublishedDate } from "./use-cases/normalize-published-date.js";
+import { ResolveProviderChain } from "./use-cases/resolve-provider-chain.js";
+import { ScoredMetadataMatch, ScoreMetadataMatch } from "./use-cases/score-metadata-match.js";
+
+type ProviderCandidate = ScoredMetadataMatch & {
+  provider: MetadataProviderId;
+  priority: number;
+};
+
+@Injectable()
+export class MetadataService {
+  private readonly extractIdentifiers = new ExtractIdentifiers();
+  private readonly extractLocalMetadataHints = new ExtractLocalMetadataHints();
+  private readonly scoreMetadataMatch = new ScoreMetadataMatch();
+  private readonly resolveProviderChain: ResolveProviderChain;
+
+  constructor(
+    private readonly database: DatabaseService,
+    local: LocalMetadataProvider,
+    openLibrary: OpenLibraryProvider,
+    googleBooks: GoogleBooksProvider,
+    bnf: BnfProvider,
+    mangaDex: MangaDexProvider,
+    comicVine: ComicVineProvider
+  ) {
+    this.resolveProviderChain = new ResolveProviderChain([local, openLibrary, googleBooks, bnf, mangaDex, comicVine]);
+  }
+
+  getSourcesConfig(): MetadataSourcesConfigDto {
+    const settings = this.getAutomationRow();
+    return {
+      isbnPriorityEnabled: Boolean(settings.isbnPriorityEnabled),
+      sources: this.getProviderConfigs().map((source) => ({
+        provider: source.provider,
+        enabled: source.provider === "local" ? true : source.enabled,
+        priority: source.priority,
+        hasApiKey: Boolean(source.apiKey)
+      }))
+    };
+  }
+
+  updateSourcesConfig(input: UpdateMetadataSourcesConfigDto): MetadataSourcesConfigDto {
+    const now = this.database.now();
+    if (input.isbnPriorityEnabled !== undefined) {
+      this.database.db
+        .update(automationSettings)
+        .set({ isbnPriorityEnabled: input.isbnPriorityEnabled, updatedAt: now })
+        .where(eq(automationSettings.id, 1))
+        .run();
+    }
+    for (const source of input.sources ?? []) {
+      if ((source.provider as string) === "local") {
+        throw new BadRequestException("Local metadata source is always active and cannot be updated");
+      }
+      const values: Partial<typeof metadataSourceConfig.$inferInsert> = {
+        enabled: source.enabled,
+        priority: source.priority,
+        updatedAt: now
+      };
+      if (source.apiKey !== undefined) values.apiKey = source.apiKey;
+      this.database.db.update(metadataSourceConfig).set(values).where(eq(metadataSourceConfig.provider, source.provider)).run();
+    }
+    return this.getSourcesConfig();
+  }
+
+  async enrichMetadata(
+    localMetadata: BookMetadata,
+    filePath: string,
+    options: { remote: boolean }
+  ): Promise<
+    BookMetadata & {
+      isbn13: string | null;
+      identifiersJson: string;
+      localMetadataJson: string;
+      metadataStatus: MetadataStatus;
+      metadataProvenanceJson: string;
+    }
+  > {
+    const identifiers = this.extractIdentifiers.fromMetadataAndFile(localMetadata, filePath);
+    const local = this.extractLocalMetadataHints.fromMetadataAndFile(localMetadata, filePath);
+    const configs = this.getProviderConfigs();
+    const chain = options.remote
+      ? this.resolveProviderChain.resolve(configs)
+      : this.resolveProviderChain.resolve(configs).filter((entry) => entry.provider.id === "local");
+    const candidates: ProviderCandidate[] = [];
+    const query = this.buildSearchQuery(local, identifiers, filePath);
+
+    for (const { provider, config } of chain) {
+      if (provider.id === "local") continue;
+      try {
+        const hasIsbn = Boolean(identifiers.isbn13 ?? identifiers.isbn10);
+        const match = hasIsbn
+          ? await provider.lookup(
+              {
+                title: local.title,
+                author: local.author,
+                filePath,
+                sourceId: null,
+                identifiers,
+                local
+              },
+              config
+            )
+          : null;
+        if (match) {
+          const completedMatch = match.description
+            ? match
+            : mergeMetadataMatch(match, await this.searchMissingDescription(provider, config, local, identifiers, filePath));
+          candidates.push(scoreProviderCandidate(this.scoreMetadataMatch, query, completedMatch, provider.id, config.priority));
+          continue;
+        }
+        if (!options.remote) continue;
+        const matches = await provider.searchByMetadata(query, config);
+        const best = this.scoreMetadataMatch.best(query, matches);
+        if (!best && matches.length) {
+          console.info(
+            `[metadata] Provider ${provider.id} returned ${matches.length} result(s) rejected by scoring for "${query.title}"`
+          );
+        }
+        if (best) {
+          if (!isActionableSearchMatch(best.match)) continue;
+          let providerMatch = best.match;
+
+          const detailedMatch = await this.lookupSearchMatchDetails(provider, config, filePath, identifiers, local, best.match);
+          if (detailedMatch) providerMatch = mergeMetadataMatch(detailedMatch, best.match);
+          candidates.push(scoreProviderCandidate(this.scoreMetadataMatch, query, providerMatch, provider.id, config.priority));
+        }
+      } catch (error) {
+        console.warn(`[metadata] Provider ${provider.id} failed for "${query.title}": ${describeMetadataProviderError(error)}`);
+      }
+    }
+
+    const materializedCandidates = await this.materializeQualifiedCovers(candidates, filePath);
+    const localProvenance = provenanceFromLocal(localMetadata);
+    const { metadata: merged, provenance: remoteProvenance } = mergeCandidatesWithLocal(
+      materializedCandidates,
+      localMetadata,
+      identifiers,
+      query.title
+    );
+    let provenance: MetadataProvenance = { ...localProvenance, ...remoteProvenance };
+    if (merged.isbn && !provenance.isbn) provenance.isbn = "local";
+    const isbn13 = identifiers.isbn13 ?? (merged.isbn ? toIsbn13(merged.isbn) : null);
+    const metadataStatus = computeMetadataStatus(merged);
+    return {
+      ...merged,
+      isbn: merged.isbn ?? isbn13 ?? identifiers.isbn10,
+      isbn13,
+      identifiersJson: JSON.stringify(identifiers),
+      localMetadataJson: JSON.stringify(local),
+      metadataStatus,
+      metadataProvenanceJson: JSON.stringify(provenance)
+    };
+  }
+
+  async enrichBook(bookId: number): Promise<typeof books.$inferSelect> {
+    const book = this.database.db.select().from(books).where(eq(books.id, bookId)).get();
+    if (!book) throw new NotFoundException("Book not found");
+    const local = parseStoredLocalMetadata(book.localMetadataJson);
+    const metadata = await this.extractCurrentLocalMetadata(book, local);
+    const enriched = await this.enrichMetadata(metadata, book.filePath, { remote: true });
+    const next = preserveExistingWhenMissing(enriched, book, book.filePath);
+    const seriesInfo = this.resolveSeries(next.title, book.filePath);
+    return this.database.db
+      .update(books)
+      .set({
+        seriesId: seriesInfo.seriesId,
+        title: next.title,
+        author: next.author,
+        description: next.description,
+        isbn: next.isbn,
+        isbn13: next.isbn13,
+        identifiersJson: enriched.identifiersJson,
+        localMetadataJson: enriched.localMetadataJson,
+        language: next.language,
+        publisher: next.publisher,
+        publishedDate: next.publishedDate,
+        volumeNumber: seriesInfo.volumeNumber,
+        volumeLabel: seriesInfo.volumeLabel,
+        coverPath: next.coverPath,
+        metadataStatus: next.metadataStatus,
+        metadataProvenanceJson: next.metadataProvenanceJson,
+        updatedAt: this.database.now()
+      })
+      .where(eq(books.id, book.id))
+      .returning()
+      .get();
+  }
+
+  private async extractCurrentLocalMetadata(book: typeof books.$inferSelect, local: LocalMetadataHints | null): Promise<BookMetadata> {
+    const fallback: BookMetadata = {
+      title: local?.title ?? book.title,
+      author: local ? local.author : book.author,
+      description: null,
+      isbn: local ? local.isbn : book.isbn,
+      language: null,
+      publisher: book.publisher,
+      publishedDate: normalizePublishedDate(local ? local.year : book.publishedDate),
+      coverPath: book.coverPath
+    };
+    if (!existsSync(book.filePath)) return fallback;
+    try {
+      const extracted = await extractMetadata(book.filePath, this.database.config.storageDir);
+      return {
+        title: extracted.title || fallback.title,
+        author: extracted.author ?? fallback.author,
+        description: extracted.description ?? fallback.description,
+        isbn: extracted.isbn ?? fallback.isbn,
+        language: extracted.language ?? fallback.language,
+        publisher: extracted.publisher ?? fallback.publisher,
+        publishedDate: normalizePublishedDate(extracted.publishedDate) ?? fallback.publishedDate,
+        coverPath: extracted.coverPath ?? fallback.coverPath
+      };
+    } catch {
+      return fallback;
+    }
+  }
+
+  private resolveSeries(title: string, filePath: string): { seriesId: number; volumeNumber: number | null; volumeLabel: string | null } {
+    const parsed = extractSeriesVolume(title, filePath);
+    const now = this.database.now();
+    const row = this.database.db
+      .insert(series)
+      .values({
+        title: parsed.seriesTitle,
+        normalizedTitle: parsed.normalizedSeriesTitle,
+        description: null,
+        publisher: null,
+        createdAt: now,
+        updatedAt: now
+      })
+      .onConflictDoUpdate({
+        target: series.normalizedTitle,
+        set: { title: parsed.seriesTitle, updatedAt: now }
+      })
+      .returning({ id: series.id })
+      .get();
+    return { seriesId: row.id, volumeNumber: parsed.volumeNumber, volumeLabel: parsed.volumeLabel };
+  }
+
+  private getProviderConfigs(): MetadataProviderConfig[] {
+    return this.database.db
+      .select()
+      .from(metadataSourceConfig)
+      .all()
+      .map((row) => ({
+        provider: row.provider,
+        enabled: row.provider === "local" ? true : row.enabled,
+        priority: row.provider === "local" ? 0 : row.priority,
+        apiKey: row.apiKey
+      }));
+  }
+
+  private getAutomationRow(): typeof automationSettings.$inferSelect {
+    return this.database.db.select().from(automationSettings).where(eq(automationSettings.id, 1)).get()!;
+  }
+
+  private async lookupSearchMatchDetails(
+    provider: MetadataProvider,
+    config: MetadataProviderConfig,
+    filePath: string,
+    identifiers: BookIdentifiers,
+    local: LocalMetadataHints,
+    match: MetadataMatch
+  ): Promise<MetadataMatch | null> {
+    const derivedIdentifiers = {
+      ...identifiers,
+      isbn13: identifiers.isbn13 ?? (match.isbn ? toIsbn13(match.isbn) : null),
+      isbn10: identifiers.isbn10 ?? match.isbn ?? null,
+      candidates: [...new Set([...identifiers.candidates, ...(match.isbn ? [match.isbn] : [])])]
+    };
+    const hasNewIdentifier = derivedIdentifiers.isbn13 !== identifiers.isbn13 || derivedIdentifiers.isbn10 !== identifiers.isbn10;
+    const hasLookupTarget = hasNewIdentifier || Boolean(match.sourceId);
+    if (!hasLookupTarget) return null;
+
+    return provider.lookup(
+      {
+        title: match.title ?? local.title,
+        author: match.author ?? local.author,
+        filePath,
+        sourceId: match.sourceId,
+        identifiers: derivedIdentifiers,
+        local
+      },
+      config
+    );
+  }
+
+  private async searchMissingDescription(
+    provider: MetadataProvider,
+    config: MetadataProviderConfig,
+    local: LocalMetadataHints,
+    identifiers: BookIdentifiers,
+    filePath: string
+  ): Promise<MetadataMatch | null> {
+    const query = this.buildSearchQuery(local, identifiers, filePath);
+    const matches = await provider.searchByMetadata(query, config);
+    return (
+      matches
+        .map((match) => ({ match, score: this.scoreMetadataMatch.score(query, match) }))
+        .filter((entry) => entry.match.description && entry.score >= 75)
+        .sort((left, right) => right.score - left.score)[0]?.match ?? null
+    );
+  }
+
+  private buildSearchQuery(local: LocalMetadataHints, identifiers: BookIdentifiers, filePath: string): MetadataSearchQuery {
+    return {
+      title: extractSeriesVolume(local.title, filePath).seriesTitle,
+      author: local.author,
+      year: local.year,
+      isbn: identifiers.isbn13 ?? identifiers.isbn10 ?? local.isbn
+    };
+  }
+
+  private async materializeCover(match: MetadataMatch, filePath: string, provider: MetadataProviderId): Promise<MetadataMatch> {
+    if (match.coverPath || !match.coverUrl) return match;
+    try {
+      const response = await providerFetch("cover", match.coverUrl, { timeoutMs: 5000 });
+      if (!response.ok) return match;
+      const data = Buffer.from(await response.arrayBuffer());
+      if (!data.length) return match;
+      const extension = coverExtension(match.coverUrl, response.headers.get("content-type"));
+      const hash = createHash("sha256").update(`${filePath}:${provider}:${match.coverUrl}`).digest("hex").slice(0, 24);
+      const target = join(this.database.config.storageDir, "covers", `${hash}${extension}`);
+      mkdirSync(dirname(target), { recursive: true });
+      writeFileSync(target, data);
+      return { ...match, coverPath: target };
+    } catch {
+      return match;
+    }
+  }
+
+  private async materializeQualifiedCovers(candidates: ProviderCandidate[], filePath: string): Promise<ProviderCandidate[]> {
+    const materialized: ProviderCandidate[] = [];
+    for (const candidate of candidates) {
+      if (isQualifiedSourceCover(candidate)) {
+        materialized.push({
+          ...candidate,
+          match: await this.materializeCover(candidate.match, filePath, candidate.provider)
+        });
+      } else {
+        materialized.push(candidate);
+      }
+    }
+    return materialized;
+  }
+}
+
+function isActionableSearchMatch(match: MetadataMatch): boolean {
+  return Boolean(match.isbn ?? match.sourceId ?? match.description);
+}
+
+function mergeMetadataMatch(current: MetadataMatch, next: MetadataMatch | null): MetadataMatch {
+  if (!next) return current;
+  return {
+    title: current.title ?? next.title,
+    author: current.author ?? next.author,
+    description: current.description ?? next.description,
+    isbn: current.isbn ?? next.isbn,
+    language: current.language ?? next.language,
+    publisher: current.publisher ?? next.publisher,
+    publishedDate: normalizePublishedDate(current.publishedDate) ?? normalizePublishedDate(next.publishedDate),
+    coverPath: current.coverPath ?? next.coverPath,
+    coverUrl: current.coverUrl ?? next.coverUrl,
+    sourceId: current.sourceId ?? next.sourceId,
+    identifiers: current.identifiers ?? next.identifiers
+  };
+}
+
+const metadataFields: MetadataField[] = ["title", "author", "description", "isbn", "language", "publisher", "publishedDate", "coverPath"];
+const fillableMetadataFields: MetadataField[] = ["author", "description", "isbn", "language", "publisher", "publishedDate"];
+
+function scoreProviderCandidate(
+  scorer: ScoreMetadataMatch,
+  query: MetadataSearchQuery,
+  match: MetadataMatch,
+  provider: MetadataProviderId,
+  priority: number
+): ProviderCandidate {
+  return { ...scorer.details(query, match), provider, priority };
+}
+
+function mergeCandidatesWithLocal(
+  candidates: ProviderCandidate[],
+  local: BookMetadata,
+  identifiers: BookIdentifiers,
+  title: string
+): { metadata: BookMetadata; provenance: MetadataProvenance } {
+  const sorted = [...candidates].sort(compareProviderCandidates);
+  const retained = sorted[0] ?? null;
+  const completionOrder = [...(retained ? [retained] : []), ...sorted.filter((candidate) => candidate !== retained)];
+  const metadata: BookMetadata = {
+    title,
+    author: local.author ?? null,
+    description: local.description ?? null,
+    isbn: identifiers.isbn13 ?? identifiers.isbn10 ?? local.isbn ?? null,
+    language: local.language ?? null,
+    publisher: local.publisher ?? null,
+    publishedDate: normalizePublishedDate(local.publishedDate),
+    coverPath: local.coverPath ?? null
+  };
+  const provenance: MetadataProvenance = {};
+  for (const field of fillableMetadataFields) {
+    if (hasMetadataValue(metadata[field])) continue;
+    const source = completionOrder.find((candidate) => hasMetadataValue(normalizeCandidateField(candidate.match, field)));
+    if (!source) continue;
+    metadata[field] = normalizeCandidateField(source.match, field) as never;
+    provenance[field] = source.provider;
+    provenance[`${field}Score` as MetadataField] = String(source.score) as never;
+  }
+  const coverSource = completionOrder.find((candidate) => isQualifiedSourceCover(candidate) && hasMetadataValue(candidate.match.coverPath));
+  if (coverSource && shouldUseSourceCover(metadata.coverPath)) {
+    metadata.coverPath = coverSource.match.coverPath ?? null;
+    provenance.coverPath = coverSource.provider;
+    provenance.coverPathScore = String(coverSource.score) as never;
+  }
+  return { metadata, provenance };
+}
+
+function compareProviderCandidates(left: ProviderCandidate, right: ProviderCandidate): number {
+  if (left.isbnMatch !== right.isbnMatch) return left.isbnMatch ? -1 : 1;
+  const leftHighConfidence = isHighConfidenceSelection(left);
+  const rightHighConfidence = isHighConfidenceSelection(right);
+  if (leftHighConfidence && rightHighConfidence) return left.priority - right.priority;
+  if (leftHighConfidence !== rightHighConfidence) return leftHighConfidence ? -1 : 1;
+  if (left.score !== right.score) return right.score - left.score;
+  return left.priority - right.priority;
+}
+
+function isHighConfidenceSelection(candidate: ProviderCandidate): boolean {
+  return candidate.titleScore > 90 && (candidate.authorScore == null || candidate.authorScore >= 15);
+}
+
+function isQualifiedSourceCover(candidate: ProviderCandidate): boolean {
+  return candidate.score >= 80 && candidate.titleScore >= 85 && Boolean(candidate.match.coverPath ?? candidate.match.coverUrl);
+}
+
+function shouldUseSourceCover(currentCoverPath: string | null): boolean {
+  return !hasMetadataValue(currentCoverPath) || isLocalCoverPath(currentCoverPath);
+}
+
+function isLocalCoverPath(value: string): boolean {
+  return /[/\\]covers[/\\][a-f0-9]{24}\.[a-z0-9]+$/i.test(value);
+}
+
+function normalizeCandidateField(match: MetadataMatch, field: MetadataField): string | null {
+  if (field === "publishedDate") return normalizePublishedDate(match.publishedDate);
+  return match[field] ?? null;
+}
+
+function hasMetadataValue(value: string | null | undefined): value is string {
+  return Boolean(value && value.trim());
+}
+
+function provenanceFromLocal(local: BookMetadata): MetadataProvenance {
+  const provenance: MetadataProvenance = {};
+  for (const field of metadataFields) {
+    if (local[field] != null && local[field] !== "") provenance[field] = "local";
+  }
+  return provenance;
+}
+
+function computeMetadataStatus(metadata: Pick<BookMetadata, "author" | "description" | "isbn" | "language" | "publisher" | "publishedDate" | "coverPath">): MetadataStatus {
+  const hasCover = Boolean(metadata.coverPath);
+  const filled = [metadata.author, metadata.description, metadata.isbn, metadata.language, metadata.publisher, metadata.publishedDate].filter(Boolean).length;
+  if (hasCover && filled >= 2) return "enriched";
+  if (hasCover || filled > 0) return "partial";
+  return "none";
+}
+
+function mergeExistingProvenance(
+  enriched: BookMetadata & { metadataProvenanceJson: string },
+  existing: typeof books.$inferSelect,
+  finalValues: BookMetadata & { isbn13: string | null }
+): MetadataProvenance {
+  const next = parseProvenance(enriched.metadataProvenanceJson);
+  const previous = parseProvenance(existing.metadataProvenanceJson);
+  const provenance: MetadataProvenance = { ...previous };
+  for (const field of metadataFields) {
+    if (field === "title") {
+      if (finalValues.title && !provenance.title) {
+        provenance.title = finalValues.title === enriched.title && finalValues.title !== existing.title ? (next.title ?? "local") : (previous.title ?? "existing");
+      }
+      continue;
+    }
+    if (field === "publishedDate") {
+      const finalDate = normalizePublishedDate(finalValues.publishedDate);
+      if (finalDate && finalDate === normalizePublishedDate(enriched.publishedDate) && finalDate !== normalizePublishedDate(existing.publishedDate)) {
+        provenance[field] = next[field] ?? provenance[field];
+        copyScoreProvenance(next, provenance, field);
+      } else if (finalDate && !provenance[field]) {
+        provenance[field] = previous[field] ?? "existing";
+      }
+      continue;
+    }
+    if (field === "coverPath" && finalValues.coverPath && finalValues.coverPath === enriched.coverPath && finalValues.coverPath !== existing.coverPath) {
+      provenance.coverPath = next.coverPath ?? provenance.coverPath;
+      copyScoreProvenance(next, provenance, field);
+      continue;
+    }
+    if (finalValues[field] && finalValues[field] === enriched[field] && finalValues[field] !== existing[field]) {
+      provenance[field] = next[field] ?? provenance[field];
+      copyScoreProvenance(next, provenance, field);
+      continue;
+    }
+    if (finalValues[field] != null && existing[field] != null && !provenance[field]) {
+      provenance[field] = previous[field] ?? "existing";
+    }
+  }
+  return provenance;
+}
+
+function copyScoreProvenance(source: MetadataProvenance, target: MetadataProvenance, field: MetadataField): void {
+  const scoreKey = `${field}Score`;
+  if (source[scoreKey]) target[scoreKey] = source[scoreKey];
+}
+
+function parseProvenance(value: string | null): MetadataProvenance {
+  if (!value) return {};
+  try {
+    const parsed = JSON.parse(value) as MetadataProvenance;
+    return parsed && typeof parsed === "object" ? parsed : {};
+  } catch {
+    return {};
+  }
+}
+
+function coverExtension(url: string, contentType: string | null): string {
+  if (contentType?.includes("png")) return ".png";
+  if (contentType?.includes("webp")) return ".webp";
+  if (contentType?.includes("gif")) return ".gif";
+  const fromUrl = extname(new URL(url).pathname).toLowerCase();
+  return fromUrl === ".png" || fromUrl === ".webp" || fromUrl === ".gif" || fromUrl === ".jpg" || fromUrl === ".jpeg" ? fromUrl : ".jpg";
+}
+
+function parseStoredLocalMetadata(value: string | null): LocalMetadataHints | null {
+  if (!value) return null;
+  try {
+    const parsed = JSON.parse(value) as Partial<LocalMetadataHints>;
+    return typeof parsed.title === "string" ? (parsed as LocalMetadataHints) : null;
+  } catch {
+    return null;
+  }
+}
+
+function preserveExistingWhenMissing(
+  enriched: BookMetadata & {
+    isbn13: string | null;
+    identifiersJson: string;
+    localMetadataJson: string;
+    metadataStatus: MetadataStatus;
+    metadataProvenanceJson: string;
+  },
+  existing: typeof books.$inferSelect,
+  filePath: string
+): BookMetadata & { isbn13: string | null; metadataStatus: MetadataStatus; metadataProvenanceJson: string } {
+  const previousProvenance = parseProvenance(existing.metadataProvenanceJson);
+  const next = {
+    title: chooseTitle(existing.title, enriched.title, filePath),
+    author: existing.author ?? enriched.author,
+    description: existing.description ?? enriched.description,
+    isbn: existing.isbn ?? enriched.isbn,
+    isbn13: existing.isbn13 ?? enriched.isbn13,
+    language: existing.language ?? enriched.language,
+    publisher: existing.publisher ?? enriched.publisher,
+    publishedDate: normalizePublishedDate(existing.publishedDate) ?? normalizePublishedDate(enriched.publishedDate),
+    coverPath: chooseCoverPath(existing.coverPath, enriched.coverPath, previousProvenance)
+  };
+  const provenance = mergeExistingProvenance(enriched, existing, next);
+  return {
+    ...next,
+    metadataStatus: computeMetadataStatus(next),
+    metadataProvenanceJson: JSON.stringify(provenance)
+  };
+}
+
+function chooseCoverPath(existingCoverPath: string | null, enrichedCoverPath: string | null, previousProvenance: MetadataProvenance): string | null {
+  if (!existingCoverPath) return enrichedCoverPath;
+  if (!enrichedCoverPath || enrichedCoverPath === existingCoverPath) return existingCoverPath;
+  return canReplaceExistingCover(existingCoverPath, previousProvenance) ? enrichedCoverPath : existingCoverPath;
+}
+
+function chooseTitle(existingTitle: string, enrichedTitle: string, filePath: string): string {
+  if (!enrichedTitle) return existingTitle;
+  if (!existingTitle) return enrichedTitle;
+  const parsedExisting = extractSeriesVolume(existingTitle, filePath).seriesTitle;
+  return parsedExisting === enrichedTitle && existingTitle !== enrichedTitle ? enrichedTitle : existingTitle;
+}
+
+function canReplaceExistingCover(existingCoverPath: string, previousProvenance: MetadataProvenance): boolean {
+  const provenance = previousProvenance.coverPath;
+  return (provenance == null || provenance === "local" || provenance === "existing") && isLocalCoverPath(existingCoverPath);
+}

apps/api/src/metadata/metadata.types.ts

@@ -0,0 +1,65 @@
+import { BookMetadata } from "../scanner/metadata.js";
+
+export type MetadataProviderId = "local" | "openlibrary" | "googlebooks" | "bnf" | "mangadex" | "comicvine";
+
+export type BookIdentifiers = {
+  isbn10: string | null;
+  isbn13: string | null;
+  candidates: string[];
+};
+
+export type MetadataLookup = {
+  title: string;
+  author: string | null;
+  filePath: string;
+  sourceId?: string | null;
+  identifiers: BookIdentifiers;
+  local: LocalMetadataHints;
+};
+
+export type LocalMetadataHints = {
+  title: string;
+  author: string | null;
+  year: string | null;
+  isbn: string | null;
+  fileTitle: string;
+  raw: {
+    title: string;
+    author: string | null;
+    publishedDate: string | null;
+    fileName: string;
+  };
+};
+
+export type MetadataSearchQuery = {
+  title: string;
+  author: string | null;
+  year?: string | null;
+  isbn?: string | null;
+};
+
+export type MetadataMatch = Partial<BookMetadata> & {
+  sourceId?: string | null;
+  coverUrl?: string | null;
+  identifiers?: Partial<BookIdentifiers>;
+  scoreTitle?: string | null;
+};
+
+export type MetadataField = "title" | "author" | "description" | "isbn" | "language" | "publisher" | "publishedDate" | "coverPath";
+
+export type MetadataStatus = "enriched" | "partial" | "none";
+
+export type MetadataProvenance = Partial<Record<string, MetadataProviderId | "existing" | string>>;
+
+export type MetadataProviderConfig = {
+  provider: MetadataProviderId;
+  enabled: boolean;
+  priority: number;
+  apiKey: string | null;
+};
+
+export interface MetadataProvider {
+  readonly id: MetadataProviderId;
+  lookup(lookup: MetadataLookup, config: MetadataProviderConfig): Promise<MetadataMatch | null>;
+  searchByMetadata(query: MetadataSearchQuery, config: MetadataProviderConfig): Promise<MetadataMatch[]>;
+}

apps/api/src/metadata/normalize-published-date.test.ts

@@ -0,0 +1,23 @@
+import { describe, expect, it } from "vitest";
+import { normalizePublishedDate } from "./use-cases/normalize-published-date.js";
+
+describe("normalizePublishedDate", () => {
+  it("rejects sentinel and absurd dates seen in real metadata providers", () => {
+    expect(normalizePublishedDate("0101-01-01T00:00:00+00:00")).toBeNull();
+    expect(normalizePublishedDate("0001-01-01")).toBeNull();
+    expect(normalizePublishedDate("1970-01-01")).toBeNull();
+    expect(normalizePublishedDate("0000")).toBeNull();
+  });
+
+  it("keeps only credible supported date formats", () => {
+    expect(normalizePublishedDate("2007")).toBe("2007");
+    expect(normalizePublishedDate("2007-07")).toBe("2007-07");
+    expect(normalizePublishedDate("2007-07-21")).toBe("2007-07-21");
+    expect(normalizePublishedDate("2007-07-21T00:00:00+00:00")).toBe("2007-07-21");
+  });
+
+  it("rejects years outside the supported publication range", () => {
+    expect(normalizePublishedDate("1499")).toBeNull();
+    expect(normalizePublishedDate("2028")).toBeNull();
+  });
+});

apps/api/src/metadata/resolve-provider-chain.test.ts

@@ -0,0 +1,21 @@
+import { describe, expect, it } from "vitest";
+import { MetadataProvider } from "./metadata.types.js";
+import { ResolveProviderChain } from "./use-cases/resolve-provider-chain.js";
+
+const provider = (id: MetadataProvider["id"]): MetadataProvider => ({
+  id,
+  lookup: async () => null,
+  searchByMetadata: async () => []
+});
+
+describe("ResolveProviderChain", () => {
+  it("keeps local active and orders enabled remote providers by priority", () => {
+    const chain = new ResolveProviderChain([provider("googlebooks"), provider("local"), provider("bnf")]).resolve([
+      { provider: "local", enabled: false, priority: 99, apiKey: null },
+      { provider: "googlebooks", enabled: true, priority: 2, apiKey: null },
+      { provider: "bnf", enabled: true, priority: 1, apiKey: null }
+    ]);
+
+    expect(chain.map((entry) => entry.provider.id)).toEqual(["bnf", "googlebooks", "local"]);
+  });
+});

apps/api/src/metadata/use-cases/extract-identifiers.ts

@@ -0,0 +1,114 @@
+import { readFileSync } from "node:fs";
+import { basename, extname } from "node:path";
+import AdmZip from "adm-zip";
+import { XMLParser } from "fast-xml-parser";
+
+export type ExtractedIdentifiers = {
+  isbn10: string | null;
+  isbn13: string | null;
+  candidates: string[];
+};
+
+const xmlParser = new XMLParser({
+  ignoreAttributes: false,
+  attributeNamePrefix: "@_",
+  textNodeName: "#text"
+});
+
+export class ExtractIdentifiers {
+  fromMetadataAndFile(metadata: { isbn?: string | null }, filePath: string): ExtractedIdentifiers {
+    const candidates = new Set<string>();
+    for (const value of [metadata.isbn, basename(filePath, extname(filePath))]) {
+      for (const isbn of findIsbns(String(value ?? ""))) candidates.add(isbn);
+    }
+
+    const extension = extname(filePath).toLowerCase();
+    if (extension === ".epub") {
+      for (const isbn of findIsbns(readLimitedEpubText(filePath))) candidates.add(isbn);
+    }
+    if (extension === ".pdf") {
+      const buffer = readFileSync(filePath);
+      const head = buffer.subarray(0, Math.min(buffer.length, 256 * 1024)).toString("latin1");
+      for (const isbn of findIsbns(head)) candidates.add(isbn);
+    }
+
+    return normalizeCandidates([...candidates]);
+  }
+}
+
+export function normalizeIsbn(value: string): string | null {
+  const compact = value.replace(/[^0-9X]/gi, "").toUpperCase();
+  if (compact.length === 10 && isValidIsbn10(compact)) return compact;
+  if (compact.length === 13 && /^97[89]/.test(compact) && isValidIsbn13(compact)) return compact;
+  return null;
+}
+
+export function toIsbn13(value: string): string | null {
+  const isbn = normalizeIsbn(value);
+  if (!isbn) return null;
+  if (isbn.length === 13) return isbn;
+  const stem = `978${isbn.slice(0, 9)}`;
+  let sum = 0;
+  for (let index = 0; index < stem.length; index += 1) {
+    sum += Number(stem[index]) * (index % 2 === 0 ? 1 : 3);
+  }
+  return `${stem}${(10 - (sum % 10)) % 10}`;
+}
+
+function normalizeCandidates(values: string[]): ExtractedIdentifiers {
+  const normalized = [...new Set(values.map(normalizeIsbn).filter((value): value is string => Boolean(value)))];
+  const isbn13 = normalized.map(toIsbn13).find((value): value is string => Boolean(value)) ?? null;
+  const isbn10 = normalized.find((value) => value.length === 10) ?? null;
+  return { isbn10, isbn13, candidates: normalized };
+}
+
+function findIsbns(text: string): string[] {
+  const matches = text.match(/(?:ISBN(?:-1[03])?:?\s*)?(?:97[89][-\s]?)?(?:\d[-\s]?){9,12}[\dX]/gi) ?? [];
+  return matches.map((match) => match.replace(/^ISBN(?:-1[03])?:?\s*/i, ""));
+}
+
+function isValidIsbn10(value: string): boolean {
+  let sum = 0;
+  for (let index = 0; index < 10; index += 1) {
+    const char = value[index];
+    const digit = char === "X" && index === 9 ? 10 : Number(char);
+    if (!Number.isInteger(digit)) return false;
+    sum += digit * (10 - index);
+  }
+  return sum % 11 === 0;
+}
+
+function isValidIsbn13(value: string): boolean {
+  let sum = 0;
+  for (let index = 0; index < 13; index += 1) {
+    const digit = Number(value[index]);
+    if (!Number.isInteger(digit)) return false;
+    sum += digit * (index % 2 === 0 ? 1 : 3);
+  }
+  return sum % 10 === 0;
+}
+
+function readLimitedEpubText(filePath: string): string {
+  try {
+    const zip = new AdmZip(filePath);
+    const fragments: string[] = [zip.readAsText("META-INF/container.xml")];
+    for (const entry of zip.getEntries()) {
+      if (fragments.join("").length > 256 * 1024) break;
+      if (!entry.isDirectory && /\.(opf|xhtml|html|htm|xml)$/i.test(entry.entryName)) {
+        fragments.push(stripXml(zip.readAsText(entry)));
+      }
+    }
+    return fragments.join("\n");
+  } catch {
+    return "";
+  }
+}
+
+function stripXml(value: string): string {
+  try {
+    const parsed = xmlParser.parse(value);
+    return JSON.stringify(parsed).slice(0, 256 * 1024);
+  } catch {
+    return value.slice(0, 256 * 1024);
+  }
+}

apps/api/src/metadata/use-cases/extract-local-metadata-hints.ts

@@ -0,0 +1,66 @@
+import { basename, extname } from "node:path";
+import { BookMetadata } from "../../scanner/metadata.js";
+import { LocalMetadataHints } from "../metadata.types.js";
+
+export class ExtractLocalMetadataHints {
+  fromMetadataAndFile(metadata: BookMetadata, filePath: string): LocalMetadataHints {
+    const fileName = basename(filePath, extname(filePath));
+    const parsed = parseFileName(fileName);
+    const title = cleanTitle(metadata.title) || parsed.title || fileName;
+    const author = cleanValue(metadata.author) ?? parsed.author;
+    const year = yearFrom(metadata.publishedDate) ?? parsed.year;
+
+    return {
+      title,
+      author,
+      year,
+      isbn: cleanValue(metadata.isbn),
+      fileTitle: parsed.title ?? fileName,
+      raw: {
+        title: metadata.title,
+        author: metadata.author,
+        publishedDate: metadata.publishedDate,
+        fileName
+      }
+    };
+  }
+}
+
+function parseFileName(fileName: string): { title: string | null; author: string | null; year: string | null } {
+  let value = fileName.replace(/[_]+/g, " ").replace(/\s+/g, " ").trim();
+  const year = yearFrom(value);
+  if (year) value = value.replace(new RegExp(`\\b${year}\\b`), " ");
+
+  const parenthetical = [...value.matchAll(/\(([^()]{2,120})\)/g)].map((match) => match[1].trim());
+  const authorFromParentheses = parenthetical.find((item) => looksLikeAuthor(item)) ?? null;
+  value = value.replace(/\([^()]*\)/g, " ");
+
+  const split = value.match(/^(.+?)\s+-\s+(.+)$/);
+  const title = cleanTitle(split?.[1] ?? value);
+  const author = cleanValue(split?.[2]) ?? authorFromParentheses;
+  return { title, author, year };
+}
+
+function cleanTitle(value: string | null): string | null {
+  if (!value) return null;
+  const cleaned = value
+    .replace(/\[[^\]]*\]/g, " ")
+    .replace(/\b(epub|pdf|retail|ebook|scan)\b/gi, " ")
+    .replace(/\s+/g, " ")
+    .trim();
+  return cleaned || null;
+}
+
+function cleanValue(value: string | null | undefined): string | null {
+  if (!value) return null;
+  const cleaned = value.replace(/\s+/g, " ").trim();
+  return cleaned || null;
+}
+
+function yearFrom(value: string | null): string | null {
+  return value?.match(/\b(1[5-9]\d{2}|20\d{2})\b/)?.[1] ?? null;
+}
+
+function looksLikeAuthor(value: string): boolean {
+  return /[A-Za-zÀ-ÖØ-öø-ÿ]/.test(value) && (value.includes(".") || value.includes(" ") || /^[A-Z][a-z]+$/.test(value));
+}

apps/api/src/metadata/use-cases/extract-series-volume.ts

@@ -0,0 +1,67 @@
+import { basename, extname } from "node:path";
+
+export type SeriesVolume = {
+  seriesTitle: string;
+  normalizedSeriesTitle: string;
+  volumeNumber: number | null;
+  volumeLabel: string | null;
+};
+
+export function extractSeriesVolume(title: string, filePath?: string | null): SeriesVolume {
+  const source = cleanSeriesSource(filePath ? basename(filePath, extname(filePath)) : title) || cleanSeriesSource(title) || title;
+  const explicit = source.match(/\b(?:T(?:ome)?|Vol(?:ume)?\.?|Issue|No\.?)\s*0*(\d{1,4})\b/i) ?? source.match(/#\s*0*(\d{1,4})\b/);
+  if (explicit?.[1]) {
+    return result(source.replace(explicit[0], " "), Number(explicit[1]), explicit[0].trim());
+  }
+
+  const padded = source.match(/\b(0{1,3}\d{1,4})\b\s*$/);
+  if (padded?.[1]) {
+    return result(source.slice(0, padded.index).trim(), Number(padded[1]), padded[1]);
+  }
+
+  return result(source, null, null);
+}
+
+function result(seriesTitle: string, volumeNumber: number | null, volumeLabel: string | null): SeriesVolume {
+  const title = cleanSeriesTitle(seriesTitle);
+  return {
+    seriesTitle: title,
+    normalizedSeriesTitle: normalizeSeriesTitle(title),
+    volumeNumber: Number.isFinite(volumeNumber) && volumeNumber !== null ? volumeNumber : null,
+    volumeLabel
+  };
+}
+
+function cleanSeriesSource(value: string): string {
+  return value
+    .replace(/\.[A-Za-z0-9]{2,5}$/g, " ")
+    .replace(/\[[^\]]*\]/g, " ")
+    .replace(/[._]+/g, " ")
+    .replace(/\b(FRENCH|TRUEFRENCH|MULTI|CBZ|CBR|EPUB|PDF|eBook|ebook|scan|digital|retail)\b/gi, " ")
+    .replace(/\b(e?bdz|Paprika\+?|emuleCenter(?:\.|\s+)net)\b/gi, " ")
+    .replace(/[+]+/g, " ")
+    .replace(/\s+-\s+/g, " ")
+    .replace(/\s*-\s*$/g, " ")
+    .replace(/\s+/g, " ")
+    .trim();
+}
+
+function cleanSeriesTitle(value: string): string {
+  return (
+    value
+      .replace(/\([^)]*\)/g, " ")
+      .replace(/\bby\s+[A-Za-z0-9À-ÖØ-öø-ÿ.' -]{2,80}$/i, " ")
+      .replace(/\s+/g, " ")
+      .trim() || "Untitled Series"
+  );
+}
+
+export function normalizeSeriesTitle(value: string): string {
+  return value
+    .normalize("NFD")
+    .replace(/[\u0300-\u036f]/g, "")
+    .toLowerCase()
+    .replace(/[^a-z0-9]+/g, " ")
+    .replace(/\s+/g, " ")
+    .trim();
+}

apps/api/src/metadata/use-cases/normalize-published-date.ts

@@ -0,0 +1,44 @@
+const minimumYear = 1500;
+const maximumYear = 2027;
+const rejectedExactDates = new Set(["0001-01-01", "0101-01-01", "1970-01-01"]);
+
+export function normalizePublishedDate(value: string | null | undefined): string | null {
+  const text = value?.trim();
+  if (!text) return null;
+
+  const isoDate = text.match(/^(\d{4})-(\d{2})-(\d{2})(?:[T\s].*)?$/);
+  if (isoDate) {
+    const [, year, month, day] = isoDate;
+    const date = `${year}-${month}-${day}`;
+    if (rejectedExactDates.has(date)) return null;
+    return validDate(Number(year), Number(month), Number(day)) ? date : null;
+  }
+
+  const yearMonth = text.match(/^(\d{4})-(\d{2})$/);
+  if (yearMonth) {
+    const [, year, month] = yearMonth;
+    return validYear(Number(year)) && validMonth(Number(month)) ? `${year}-${month}` : null;
+  }
+
+  const yearOnly = text.match(/^(\d{4})$/);
+  if (yearOnly) {
+    const year = Number(yearOnly[1]);
+    return validYear(year) ? yearOnly[1] : null;
+  }
+
+  return null;
+}
+
+function validDate(year: number, month: number, day: number): boolean {
+  if (!validYear(year) || !validMonth(month) || day < 1 || day > 31) return false;
+  const date = new Date(Date.UTC(year, month - 1, day));
+  return date.getUTCFullYear() === year && date.getUTCMonth() === month - 1 && date.getUTCDate() === day;
+}
+
+function validYear(year: number): boolean {
+  return Number.isInteger(year) && year >= minimumYear && year <= maximumYear;
+}
+
+function validMonth(month: number): boolean {
+  return Number.isInteger(month) && month >= 1 && month <= 12;
+}

apps/api/src/metadata/use-cases/resolve-provider-chain.ts

@@ -0,0 +1,14 @@
+import { MetadataProvider, MetadataProviderConfig } from "../metadata.types.js";
+
+export class ResolveProviderChain {
+  constructor(private readonly providers: MetadataProvider[]) {}
+
+  resolve(configs: MetadataProviderConfig[]): Array<{ provider: MetadataProvider; config: MetadataProviderConfig }> {
+    const configById = new Map(configs.map((config) => [config.provider, config]));
+    return this.providers
+      .map((provider) => ({ provider, config: configById.get(provider.id) }))
+      .filter((entry): entry is { provider: MetadataProvider; config: MetadataProviderConfig } => Boolean(entry.config))
+      .filter((entry) => entry.config.provider === "local" || entry.config.enabled)
+      .sort((left, right) => left.config.priority - right.config.priority);
+  }
+}

apps/api/src/metadata/use-cases/score-metadata-match.ts

@@ -0,0 +1,127 @@
+import { MetadataMatch, MetadataSearchQuery } from "../metadata.types.js";
+
+export type ScoredMetadataMatch = {
+  match: MetadataMatch;
+  score: number;
+  titleScore: number;
+  authorScore: number | null;
+  dateScore: number | null;
+  isbnMatch: boolean;
+};
+
+export class ScoreMetadataMatch {
+  score(query: MetadataSearchQuery, match: MetadataMatch): number {
+    return this.details(query, match).score;
+  }
+
+  details(query: MetadataSearchQuery, match: MetadataMatch): ScoredMetadataMatch {
+    const titleScore = scoreTitle(query.title, match.scoreTitle ?? match.title ?? "");
+    const authorScore = query.author ? scoreAuthor(query.author, match.author) : null;
+    const dateScore = query.year ? scoreDate(query.year, match.publishedDate) : null;
+    const isbnMatch = exactIsbnMatch(query.isbn, match.isbn);
+    const maxPossible = 100 + (authorScore == null ? 0 : 30) + (dateScore == null ? 0 : 10);
+    const sum = titleScore + (authorScore ?? 0) + (dateScore ?? 0);
+    return {
+      match,
+      score: maxPossible ? Math.round((100 * sum) / maxPossible) : 0,
+      titleScore,
+      authorScore,
+      dateScore,
+      isbnMatch
+    };
+  }
+
+  best(query: MetadataSearchQuery, matches: MetadataMatch[], minimumScore = 0): ScoredMetadataMatch | null {
+    const scored = matches
+      .map((match) => this.details(query, match))
+      .sort((left, right) => compareScoredMatches(query, left, right));
+    const best = scored[0];
+    return best && best.score >= minimumScore ? best : null;
+  }
+}
+
+function compareScoredMatches(query: MetadataSearchQuery, left: ScoredMetadataMatch, right: ScoredMetadataMatch): number {
+  if (left.isbnMatch !== right.isbnMatch) return left.isbnMatch ? -1 : 1;
+  const leftTitleAuthor = isHighConfidenceTitleAuthor(query, left);
+  const rightTitleAuthor = isHighConfidenceTitleAuthor(query, right);
+  if (leftTitleAuthor !== rightTitleAuthor) return leftTitleAuthor ? -1 : 1;
+  return right.score - left.score;
+}
+
+function isHighConfidenceTitleAuthor(query: MetadataSearchQuery, scored: ScoredMetadataMatch): boolean {
+  return scored.titleScore > 90 && (!query.author || (scored.authorScore ?? 0) >= 15);
+}
+
+function scoreTitle(left: string, right: string): number {
+  const normalizedLeft = normalizeTitle(left);
+  const normalizedRight = normalizeTitle(right);
+  if (!normalizedLeft || !normalizedRight) return 0;
+  if (normalizedLeft === normalizedRight) return 100;
+  if (normalizedLeft.includes(normalizedRight) || normalizedRight.includes(normalizedLeft)) return 95;
+  return Math.round(jaccard(tokens(normalizedLeft), tokens(normalizedRight)) * 100);
+}
+
+function scoreAuthor(localAuthor: string, sourceAuthor: string | null | undefined): number {
+  const local = authorSet(localAuthor);
+  if (!local.size) return 0;
+  const source = authorSet(sourceAuthor ?? "");
+  const present = [...local].filter((author) => source.has(author)).length;
+  return 30 * (present / local.size);
+}
+
+function scoreDate(localYear: string, sourceDate: string | null | undefined): number {
+  const left = Number(yearFrom(localYear));
+  const right = Number(yearFrom(sourceDate ?? ""));
+  if (!left || !right) return 0;
+  if (left === right) return 10;
+  return Math.abs(left - right) <= 1 ? 5 : 0;
+}
+
+function exactIsbnMatch(left: string | null | undefined, right: string | null | undefined): boolean {
+  const normalizedLeft = normalizeIsbn(left);
+  const normalizedRight = normalizeIsbn(right);
+  return Boolean(normalizedLeft && normalizedRight && normalizedLeft === normalizedRight);
+}
+
+function normalizeTitle(value: string): string {
+  return normalizeText(value.split(":")[0] ?? "").replace(/^(?:le|la|les|the|a|an|l)\s+/, "");
+}
+
+function normalizeText(value: string): string {
+  return value
+    .normalize("NFD")
+    .replace(/[\u0300-\u036f]/g, "")
+    .toLowerCase()
+    .replace(/[^a-z0-9]+/g, " ")
+    .replace(/\s+/g, " ")
+    .trim();
+}
+
+function authorSet(value: string): Set<string> {
+  return new Set(
+    value
+      .split(/[,;&/]|\band\b|\bet\b/gi)
+      .map(normalizeText)
+      .filter(Boolean)
+      .sort()
+  );
+}
+
+function tokens(value: string): Set<string> {
+  return new Set(value.split(" ").filter(Boolean));
+}
+
+function jaccard(leftTokens: Set<string>, rightTokens: Set<string>): number {
+  const intersection = [...leftTokens].filter((token) => rightTokens.has(token)).length;
+  const union = new Set([...leftTokens, ...rightTokens]).size;
+  return union ? intersection / union : 0;
+}
+
+function yearFrom(value: string): string | null {
+  return value.match(/\b(1[5-9]\d{2}|20\d{2})\b/)?.[1] ?? null;
+}
+
+function normalizeIsbn(value: string | null | undefined): string | null {
+  const normalized = value?.replace(/[^0-9X]/gi, "").toUpperCase() ?? "";
+  return normalized || null;
+}

apps/api/src/progress/progress.controller.ts

@@ -17,7 +17,7 @@ export class ProgressController {
 
   @Get(":bookId")
   get(@CurrentUserParam() user: CurrentUser, @Param("bookId") bookId: string) {
-    return this.progress.get(user.id, Number(bookId));
+    return this.progress.find(user.id, Number(bookId));
   }
 
   @Put(":bookId")

apps/api/src/progress/progress.service.ts

@@ -30,6 +30,14 @@ export class ProgressService {
   }
 
   get(userId: number, bookId: number) {
+    const row = this.find(userId, bookId);
+    if (!row) {
+      throw new NotFoundException("Progress not found");
+    }
+    return row;
+  }
+
+  find(userId: number, bookId: number) {
     const row = this.database.db
       .select({
         bookId: progress.bookId,
@@ -40,10 +48,7 @@ export class ProgressService {
       .from(progress)
       .where(sql`${progress.userId} = ${userId} AND ${progress.bookId} = ${bookId}`)
       .get();
-    if (!row) {
-      throw new NotFoundException("Progress not found");
-    }
-    return row;
+    return row ?? null;
   }
 
   continueReading(userId: number) {

apps/api/src/reader/reader-preferences.controller.ts

@@ -0,0 +1,26 @@
+import { Body, Controller, Get, Param, Put, UseGuards } from "@nestjs/common";
+import { UpdateReaderPreferencesDto, UpdateReaderPreferencesSchema } from "@readabook/shared";
+import { AuthGuard } from "../auth/auth.guard.js";
+import { CurrentUser, CurrentUserParam } from "../auth/current-user.js";
+import { ZodValidationPipe } from "../common/zod-validation.pipe.js";
+import { ReaderPreferencesService } from "./reader-preferences.service.js";
+
+@Controller("reader/preferences")
+@UseGuards(AuthGuard)
+export class ReaderPreferencesController {
+  constructor(private readonly preferences: ReaderPreferencesService) {}
+
+  @Get(":bookId")
+  get(@CurrentUserParam() user: CurrentUser, @Param("bookId") bookId: string) {
+    return this.preferences.find(user.id, Number(bookId));
+  }
+
+  @Put(":bookId")
+  update(
+    @CurrentUserParam() user: CurrentUser,
+    @Param("bookId") bookId: string,
+    @Body(new ZodValidationPipe(UpdateReaderPreferencesSchema)) body: UpdateReaderPreferencesDto
+  ) {
+    return this.preferences.upsert(user.id, Number(bookId), body);
+  }
+}

apps/api/src/reader/reader-preferences.service.ts

@@ -0,0 +1,47 @@
+import { Injectable, NotFoundException } from "@nestjs/common";
+import { eq, sql } from "drizzle-orm";
+import { UpdateReaderPreferencesDto } from "@readabook/shared";
+import { DatabaseService } from "../database/database.service.js";
+import { books, readerPreferences } from "../database/schema.js";
+
+@Injectable()
+export class ReaderPreferencesService {
+  constructor(private readonly database: DatabaseService) {}
+
+  find(userId: number, bookId: number) {
+    const row = this.database.db
+      .select({
+        mode: readerPreferences.mode,
+        fit: readerPreferences.fit,
+        updatedAt: readerPreferences.updatedAt
+      })
+      .from(readerPreferences)
+      .where(sql`${readerPreferences.userId} = ${userId} AND ${readerPreferences.bookId} = ${bookId}`)
+      .get();
+    return row ?? { mode: "paged", fit: null };
+  }
+
+  upsert(userId: number, bookId: number, input: UpdateReaderPreferencesDto) {
+    const book = this.database.db.select({ id: books.id }).from(books).where(eq(books.id, bookId)).get();
+    if (!book) throw new NotFoundException("Book not found");
+
+    const current = this.find(userId, bookId);
+    const now = this.database.now();
+    const mode = input.mode ?? current.mode;
+    const fit = input.fit === undefined ? current.fit : input.fit;
+
+    this.database.sqlite
+      .prepare(
+        `
+        INSERT INTO reader_preferences(user_id, book_id, mode, fit, created_at, updated_at)
+        VALUES (?, ?, ?, ?, ?, ?)
+        ON CONFLICT(user_id, book_id) DO UPDATE SET
+          mode = excluded.mode,
+          fit = excluded.fit,
+          updated_at = excluded.updated_at
+      `
+      )
+      .run(userId, bookId, mode, fit, now, now);
+    return this.find(userId, bookId);
+  }
+}

apps/api/src/reader/reader.module.ts

@@ -0,0 +1,12 @@
+import { Module } from "@nestjs/common";
+import { AuthModule } from "../auth/auth.module.js";
+import { DatabaseModule } from "../database/database.module.js";
+import { ReaderPreferencesController } from "./reader-preferences.controller.js";
+import { ReaderPreferencesService } from "./reader-preferences.service.js";
+
+@Module({
+  imports: [AuthModule, DatabaseModule],
+  controllers: [ReaderPreferencesController],
+  providers: [ReaderPreferencesService]
+})
+export class ReaderModule {}

apps/api/src/scanner/metadata.test.ts

@@ -1,18 +1,56 @@
 import { mkdtempSync, writeFileSync } from "node:fs";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
-import { describe, expect, it } from "vitest";
+import AdmZip from "adm-zip";
+import { describe, expect, it, vi } from "vitest";
+import { listCbzImageEntries } from "../common/cbz.js";
 import { extractMetadata } from "./metadata.js";
 
+vi.mock("../common/cbr.js", () => ({
+  listCbrImageEntries: async () => [{ entryName: "001.jpg", name: "001.jpg" }],
+  readCbrPage: async () => ({ entryName: "001.jpg", data: Buffer.from([0xff, 0xd8, 0xff, 0xd9]) })
+}));
+
 describe("pdf metadata extraction", () => {
-  it("falls back to file name and reads simple PDF info fields", () => {
+  it("falls back to file name and reads simple PDF info fields", async () => {
     const dir = mkdtempSync(join(tmpdir(), "readabook-"));
     const file = join(dir, "Example.pdf");
     writeFileSync(file, "%PDF-1.4\n1 0 obj << /Title (My Book) /Author (Ada) >> endobj");
 
-    const metadata = extractMetadata(file, dir);
+    const metadata = await extractMetadata(file, dir);
 
     expect(metadata.title).toBe("My Book");
     expect(metadata.author).toBe("Ada");
   });
 });
+
+describe("cbz metadata extraction", () => {
+  it("uses the file name as title and first image as cover", async () => {
+    const dir = mkdtempSync(join(tmpdir(), "readabook-"));
+    const file = join(dir, "Comic One.cbz");
+    const zip = new AdmZip();
+    zip.addFile("002.jpg", Buffer.from([0xff, 0xd8, 0xff, 0xd9]));
+    zip.addFile("001.jpg", Buffer.from([0xff, 0xd8, 0xff, 0xd9]));
+    zip.writeZip(file);
+
+    const metadata = await extractMetadata(file, dir);
+    const pages = listCbzImageEntries(file);
+
+    expect(metadata.title).toBe("Comic One");
+    expect(metadata.coverPath).toMatch(/covers\/[a-f0-9]+\.jpg$/);
+    expect(pages.map((page) => page.name)).toEqual(["001.jpg", "002.jpg"]);
+  });
+});
+
+describe("cbr metadata extraction", () => {
+  it("uses the file name as title and first extracted image as cover", async () => {
+    const dir = mkdtempSync(join(tmpdir(), "readabook-"));
+    const file = join(dir, "Comic Two.cbr");
+    writeFileSync(file, "rar");
+
+    const metadata = await extractMetadata(file, dir);
+
+    expect(metadata.title).toBe("Comic Two");
+    expect(metadata.coverPath).toMatch(/covers\/[a-f0-9]+\.jpg$/);
+  });
+});

apps/api/src/scanner/metadata.ts

@@ -3,6 +3,9 @@ import { mkdirSync, readFileSync, writeFileSync } from "node:fs";
 import { basename, dirname, extname, join } from "node:path";
 import AdmZip from "adm-zip";
 import { XMLParser } from "fast-xml-parser";
+import { listCbrImageEntries, readCbrPage } from "../common/cbr.js";
+import { listCbzImageEntries } from "../common/cbz.js";
+import { normalizePublishedDate } from "../metadata/use-cases/normalize-published-date.js";
 
 export type BookMetadata = {
   title: string;
@@ -21,11 +24,17 @@ const xmlParser = new XMLParser({
   textNodeName: "#text"
 });
 
-export function extractMetadata(filePath: string, storageDir: string): BookMetadata {
+export async function extractMetadata(filePath: string, storageDir: string): Promise<BookMetadata> {
   const extension = extname(filePath).toLowerCase();
   if (extension === ".epub") {
     return extractEpubMetadata(filePath, storageDir);
   }
+  if (extension === ".cbz") {
+    return extractCbzMetadata(filePath, storageDir);
+  }
+  if (extension === ".cbr") {
+    return extractCbrMetadata(filePath, storageDir);
+  }
   return extractPdfMetadata(filePath);
 }
 
@@ -56,7 +65,7 @@ function extractEpubMetadata(filePath: string, storageDir: string): BookMetadata
     isbn,
     language: firstText(metadata["dc:language"]),
     publisher: firstText(metadata["dc:publisher"]),
-    publishedDate: firstText(metadata["dc:date"]),
+    publishedDate: normalizePublishedDate(firstText(metadata["dc:date"])),
     coverPath
   };
 }
@@ -78,6 +87,26 @@ function extractPdfMetadata(filePath: string): BookMetadata {
   };
 }
 
+function extractCbzMetadata(filePath: string, storageDir: string): BookMetadata {
+  const zip = new AdmZip(filePath);
+  const firstPage = listCbzImageEntries(filePath)[0];
+  const coverPath = extractCover(zip, firstPage.entryName, filePath, storageDir);
+  return {
+    ...fallbackMetadata(filePath),
+    coverPath
+  };
+}
+
+async function extractCbrMetadata(filePath: string, storageDir: string): Promise<BookMetadata> {
+  const firstPage = (await listCbrImageEntries(filePath))[0];
+  const page = await readCbrPage(filePath, 1, storageDir);
+  const coverPath = writeCoverData(page.data, firstPage.entryName, filePath, storageDir);
+  return {
+    ...fallbackMetadata(filePath),
+    coverPath
+  };
+}
+
 function fallbackMetadata(filePath: string): BookMetadata {
   return {
     title: basename(filePath, extname(filePath)),
@@ -139,6 +168,15 @@ function extractCover(zip: AdmZip, coverPathInZip: string, filePath: string, sto
   return target;
 }
 
+function writeCoverData(data: Buffer, entryName: string, filePath: string, storageDir: string): string {
+  const extension = extname(entryName) || ".jpg";
+  const hash = createHash("sha256").update(filePath).digest("hex").slice(0, 24);
+  const target = join(storageDir, "covers", `${hash}${extension}`);
+  mkdirSync(dirname(target), { recursive: true });
+  writeFileSync(target, data);
+  return target;
+}
+
 function matchPdfInfo(text: string, key: string): string | null {
   return text.match(new RegExp(`/${key}\\s*\\(([^)]{1,500})\\)`))?.[1] ?? null;
 }

apps/api/src/scanner/scanner.module.ts

@@ -1,12 +1,12 @@
 import { Module } from "@nestjs/common";
 import { DatabaseModule } from "../database/database.module.js";
 import { JobsModule } from "../jobs/jobs.module.js";
-import { OpenLibraryService } from "./open-library.service.js";
+import { MetadataModule } from "../metadata/metadata.module.js";
 import { ScannerService } from "./scanner.service.js";
 
 @Module({
-  imports: [DatabaseModule, JobsModule],
-  providers: [ScannerService, OpenLibraryService],
+  imports: [DatabaseModule, JobsModule, MetadataModule],
+  providers: [ScannerService],
   exports: [ScannerService]
 })
 export class ScannerModule {}

apps/api/src/scanner/scanner.service.test.ts

@@ -0,0 +1,252 @@
+import { mkdtempSync, rmSync } from "node:fs";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
+import { afterEach, describe, expect, it } from "vitest";
+import { DatabaseService } from "../database/database.service.js";
+import { books, libraries } from "../database/schema.js";
+import { JobsService } from "../jobs/jobs.service.js";
+import { enrichmentDigest, preserveExistingBookValues, scanDigest } from "./scanner.service.js";
+import { ScannerService } from "./scanner.service.js";
+
+const previousDatabasePath = process.env.DATABASE_PATH;
+const previousStorageDir = process.env.STORAGE_DIR;
+const tempDirs: string[] = [];
+
+afterEach(() => {
+  process.env.DATABASE_PATH = previousDatabasePath;
+  process.env.STORAGE_DIR = previousStorageDir;
+  for (const dir of tempDirs.splice(0)) {
+    rmSync(dir, { recursive: true, force: true });
+  }
+});
+
+describe("scan digest", () => {
+  it("reports incomplete files without exposing huge traces", () => {
+    const detail = scanDigest(
+      19,
+      0,
+      [
+        { filePath: "/library/broken.cbr", error: "x".repeat(300) },
+        { filePath: "/library/broken.epub", error: "Invalid EPUB" }
+      ]
+    );
+
+    expect(detail).toContain("Scanned 19 file(s)");
+    expect(detail).toContain("2 incomplete file(s)");
+    expect(detail).toContain("broken.cbr");
+    expect(detail.length).toBeLessThan(380);
+  });
+
+  it("reports metadata enrichment jobs as enrichment, not scans", () => {
+    expect(enrichmentDigest(35, [])).toBe("Enriched 35 book(s)");
+  });
+
+  it("does not erase existing metadata or cover when a rescan has less information", () => {
+    const existing: typeof books.$inferSelect = {
+      id: 1,
+      libraryId: 1,
+      seriesId: null,
+      title: "Daredevil",
+      author: "Roy Thomas",
+      description: "Existing description",
+      isbn: "9782809476255",
+      isbn13: "9782809476255",
+      identifiersJson: null,
+      localMetadataJson: null,
+      language: "fre",
+      publisher: "Panini comics",
+      publishedDate: "2019",
+      volumeNumber: null,
+      volumeLabel: null,
+      format: "cbz",
+      filePath: "/library/Daredevil.cbz",
+      coverPath: "/storage/covers/daredevil.jpg",
+      metadataStatus: "enriched",
+      metadataProvenanceJson: JSON.stringify({ author: "bnf", coverPath: "openlibrary" }),
+      scanStatus: "succeeded",
+      enrichmentStatus: "succeeded",
+      fileSize: 12,
+      fileMtime: "2026-08-23T00:00:00.000Z",
+      createdAt: "2026-08-23T00:00:00.000Z",
+      updatedAt: "2026-08-23T00:00:00.000Z"
+    };
+
+    const next = preserveExistingBookValues(
+      {
+        title: "Daredevil",
+        author: null,
+        description: null,
+        isbn: null,
+        isbn13: null,
+        language: null,
+        publisher: null,
+        publishedDate: null,
+        coverPath: null,
+        metadataStatus: "none",
+        metadataProvenanceJson: JSON.stringify({ title: "local" }),
+        scanStatus: "succeeded" as const
+      },
+      existing
+    );
+
+    expect(next).toMatchObject({
+      author: "Roy Thomas",
+      description: "Existing description",
+      isbn: "9782809476255",
+      coverPath: "/storage/covers/daredevil.jpg",
+      metadataStatus: "enriched"
+    });
+    expect(JSON.parse(String(next.metadataProvenanceJson))).toMatchObject({
+      title: "local",
+      author: "bnf",
+      coverPath: "openlibrary"
+    });
+  });
+
+  it("does not replace an existing valid publication date with a sentinel date", () => {
+    const existing = {
+      id: 1,
+      libraryId: 1,
+      seriesId: null,
+      title: "Lord of the Mysteries",
+      author: null,
+      description: null,
+      isbn: null,
+      isbn13: null,
+      identifiersJson: null,
+      localMetadataJson: null,
+      language: null,
+      publisher: null,
+      publishedDate: "2018",
+      volumeNumber: null,
+      volumeLabel: null,
+      format: "epub",
+      filePath: "/library/Lord of the Mysteries.epub",
+      coverPath: null,
+      metadataStatus: "partial",
+      metadataProvenanceJson: JSON.stringify({ publishedDate: "existing" }),
+      scanStatus: "succeeded",
+      enrichmentStatus: "succeeded",
+      fileSize: 12,
+      fileMtime: "2026-08-23T00:00:00.000Z",
+      createdAt: "2026-08-23T00:00:00.000Z",
+      updatedAt: "2026-08-23T00:00:00.000Z"
+    } satisfies typeof books.$inferSelect;
+
+    const next = preserveExistingBookValues(
+      {
+        title: "Lord of the Mysteries",
+        publishedDate: "0101-01-01T00:00:00+00:00",
+        metadataStatus: "partial",
+        metadataProvenanceJson: JSON.stringify({ title: "local", publishedDate: "openlibrary" })
+      },
+      existing
+    );
+
+    expect(next.publishedDate).toBe("2018");
+  });
+
+  it.runIf(canLoadBetterSqlite())("updates the existing book when an insert races with books.file_path uniqueness", () => {
+    const database = createDatabase();
+    const now = database.now();
+    const library = database.db
+      .insert(libraries)
+      .values({ name: "Corpus", path: "/library", enabled: true, createdAt: now, updatedAt: now })
+      .returning()
+      .get();
+    database.db
+      .insert(books)
+      .values({
+        libraryId: library.id,
+        seriesId: null,
+        title: "Daredevil",
+        author: null,
+        description: null,
+        isbn: null,
+        isbn13: null,
+        identifiersJson: null,
+        localMetadataJson: null,
+        language: null,
+        publisher: null,
+        publishedDate: null,
+        volumeNumber: null,
+        volumeLabel: null,
+        format: "cbz",
+        filePath: "/library/Daredevil.cbz",
+        coverPath: null,
+        metadataStatus: "none",
+        metadataProvenanceJson: null,
+        scanStatus: "succeeded",
+        enrichmentStatus: "succeeded",
+        fileSize: 1,
+        fileMtime: now,
+        createdAt: now,
+        updatedAt: now
+      })
+      .run();
+    const scanner = new ScannerService(database, new JobsService(database), {} as never);
+    const values: Omit<typeof books.$inferInsert, "createdAt"> = {
+      libraryId: library.id,
+      seriesId: null,
+      title: "Daredevil",
+      author: "Roy Thomas",
+      description: "Updated metadata",
+      isbn: null,
+      isbn13: null,
+      identifiersJson: null,
+      localMetadataJson: null,
+      language: null,
+      publisher: null,
+      publishedDate: null,
+      volumeNumber: null,
+      volumeLabel: null,
+      format: "cbz",
+      filePath: "/library/Daredevil.cbz",
+      coverPath: "/storage/covers/daredevil.jpg",
+      metadataStatus: "enriched",
+      metadataProvenanceJson: JSON.stringify({ author: "bnf", coverPath: "local" }),
+      scanStatus: "succeeded",
+      enrichmentStatus: "succeeded",
+      fileSize: 2,
+      fileMtime: now,
+      updatedAt: now
+    };
+
+    (scanner as unknown as {
+      upsertBookByFilePath(values: Omit<typeof books.$inferInsert, "createdAt">, existing: undefined, createdAt: string): void;
+    }).upsertBookByFilePath(
+      values,
+      undefined,
+      now
+    );
+
+    const rows = database.db.select().from(books).all();
+    expect(rows).toHaveLength(1);
+    expect(rows[0]).toMatchObject({
+      author: "Roy Thomas",
+      coverPath: "/storage/covers/daredevil.jpg",
+      metadataStatus: "enriched",
+      fileSize: 2
+    });
+
+    database.onModuleDestroy();
+  });
+});
+
+function createDatabase(): DatabaseService {
+  const dir = mkdtempSync(join(tmpdir(), "readabook-scanner-service-"));
+  tempDirs.push(dir);
+  process.env.DATABASE_PATH = join(dir, "readabook.sqlite");
+  process.env.STORAGE_DIR = join(dir, "storage");
+  return new DatabaseService();
+}
+
+function canLoadBetterSqlite(): boolean {
+  try {
+    const database = createDatabase();
+    database.onModuleDestroy();
+    return true;
+  } catch {
+    return false;
+  }
+}

apps/api/src/scanner/scanner.service.ts

@@ -1,19 +1,21 @@
 import { Injectable, NotFoundException } from "@nestjs/common";
-import { readdirSync, statSync } from "node:fs";
-import { extname, join } from "node:path";
-import { eq } from "drizzle-orm";
+import { existsSync, readdirSync, statSync } from "node:fs";
+import { basename, extname, join } from "node:path";
+import { eq, inArray } from "drizzle-orm";
 import { DatabaseService } from "../database/database.service.js";
-import { books, libraries } from "../database/schema.js";
+import { automationSettings, books, libraries, series } from "../database/schema.js";
 import { JobsService } from "../jobs/jobs.service.js";
+import { MetadataService } from "../metadata/metadata.service.js";
+import { extractSeriesVolume } from "../metadata/use-cases/extract-series-volume.js";
+import { normalizePublishedDate } from "../metadata/use-cases/normalize-published-date.js";
 import { extractMetadata } from "./metadata.js";
-import { OpenLibraryService } from "./open-library.service.js";
 
 @Injectable()
 export class ScannerService {
   constructor(
     private readonly database: DatabaseService,
     private readonly jobs: JobsService,
-    private readonly openLibrary: OpenLibraryService
+    private readonly metadata: MetadataService
   ) {}
 
   enqueueLibraryScan(libraryId: number) {
@@ -28,51 +30,271 @@ export class ScannerService {
     return job;
   }
 
+  enqueueAllLibrariesScan(detail = "Scanning all enabled libraries") {
+    const job = this.jobs.create("library-scan-all", detail);
+    setImmediate(() => {
+      void this.scanAllLibraries(job.id).catch((error) => this.jobs.markFailed(job.id, error));
+    });
+    return job;
+  }
+
+  enqueueMetadataEnrichment(detail = "Enriching existing books") {
+    const job = this.jobs.create("metadata-enrich", detail);
+    setImmediate(() => {
+      void this.enrichExistingBooks(job.id).catch((error) => this.jobs.markFailed(job.id, error));
+    });
+    return job;
+  }
+
   private async scanLibrary(jobId: number, library: typeof libraries.$inferSelect): Promise<void> {
     this.jobs.markRunning(jobId, `Scanning ${library.path}`);
     let count = 0;
+    const failures: ScanFailure[] = [];
+    const seen = new Set<string>();
     for (const filePath of walkBooks(library.path)) {
-      await this.ingestFile(library.id, filePath);
-      count += 1;
+      seen.add(filePath);
+      try {
+        await this.ingestFile(library.id, filePath);
+        count += 1;
+      } catch (error) {
+        failures.push({ filePath, error: errorMessage(error) });
+        this.ingestIncompleteFile(library.id, filePath);
+      }
     }
-    this.jobs.markSucceeded(jobId, `Scanned ${count} file(s)`);
+    const removed = this.removeMissingBooks(library.id, seen);
+    this.jobs.markSucceeded(jobId, scanDigest(count, removed, failures));
+  }
+
+  private async scanAllLibraries(jobId: number): Promise<void> {
+    this.jobs.markRunning(jobId, "Scanning all enabled libraries");
+    const enabledLibraries = this.database.db.select().from(libraries).where(eq(libraries.enabled, true)).all();
+    let scanned = 0;
+    const failures: ScanFailure[] = [];
+    for (const library of enabledLibraries) {
+      for (const filePath of walkBooks(library.path)) {
+        try {
+          await this.ingestFile(library.id, filePath);
+          scanned += 1;
+        } catch (error) {
+          failures.push({ filePath, error: errorMessage(error) });
+          this.ingestIncompleteFile(library.id, filePath);
+        }
+      }
+    }
+    this.jobs.markSucceeded(jobId, scanDigest(scanned, 0, failures, `across ${enabledLibraries.length} library/libraries`));
+  }
+
+  private async enrichExistingBooks(jobId: number): Promise<void> {
+    this.jobs.markRunning(jobId, "Enriching existing books");
+    const rows = this.database.db.select({ id: books.id }).from(books).all();
+    let count = 0;
+    const failures: ScanFailure[] = [];
+    for (const row of rows) {
+      this.markBookEnrichmentStatus(row.id, "running");
+      try {
+        await this.metadata.enrichBook(row.id);
+        this.markBookEnrichmentStatus(row.id, "succeeded");
+        count += 1;
+      } catch (error) {
+        this.markBookEnrichmentStatus(row.id, "failed");
+        failures.push({ filePath: `book #${row.id}`, error: errorMessage(error) });
+      }
+    }
+    this.jobs.markSucceeded(jobId, enrichmentDigest(count, failures));
   }
 
   private async ingestFile(libraryId: number, filePath: string): Promise<void> {
     const stats = statSync(filePath);
-    let metadata = extractMetadata(filePath, this.database.config.storageDir);
-    if (this.database.config.openLibraryEnabled) {
-      try {
-        metadata = { ...metadata, ...(await this.openLibrary.enrich(metadata)) };
-      } catch {
-        // Remote enrichment is opportunistic; local ingestion must stay deterministic.
-      }
+    const existing = this.database.db.select().from(books).where(eq(books.filePath, filePath)).get();
+    if (existing) {
+      this.database.db
+        .update(books)
+        .set({ scanStatus: "running", enrichmentStatus: "running", updatedAt: this.database.now() })
+        .where(eq(books.id, existing.id))
+        .run();
     }
-
+    const localMetadata = await extractMetadata(filePath, this.database.config.storageDir);
     const now = this.database.now();
-    const format: "epub" | "pdf" = extname(filePath).toLowerCase() === ".epub" ? "epub" : "pdf";
-    const existing = this.database.db.select({ id: books.id }).from(books).where(eq(books.filePath, filePath)).get();
+    const format = bookFormatFromPath(filePath);
+    const shouldRemoteEnrich = !existing ? this.shouldAutoEnrichNewBooks() : true;
+    const metadata = await this.metadata.enrichMetadata(localMetadata, filePath, { remote: shouldRemoteEnrich });
+    const seriesInfo = this.resolveSeries(metadata.title, filePath);
     const values = {
       libraryId,
+      seriesId: seriesInfo.seriesId,
       title: metadata.title,
       author: metadata.author,
       description: metadata.description,
       isbn: metadata.isbn,
+      isbn13: metadata.isbn13,
+      identifiersJson: metadata.identifiersJson,
+      localMetadataJson: metadata.localMetadataJson,
       language: metadata.language,
       publisher: metadata.publisher,
       publishedDate: metadata.publishedDate,
+      volumeNumber: seriesInfo.volumeNumber,
+      volumeLabel: seriesInfo.volumeLabel,
       format,
       filePath,
       coverPath: metadata.coverPath,
+      metadataStatus: metadata.metadataStatus,
+      metadataProvenanceJson: metadata.metadataProvenanceJson,
+      scanStatus: "succeeded" as const,
+      enrichmentStatus: shouldRemoteEnrich ? ("succeeded" as const) : ("idle" as const),
       fileSize: stats.size,
       fileMtime: stats.mtime.toISOString(),
       updatedAt: now
     };
 
-    existing
-      ? this.database.db.update(books).set(values).where(eq(books.id, existing.id)).returning().get()
-      : this.database.db.insert(books).values({ ...values, createdAt: now }).returning().get();
+    this.upsertBookByFilePath(values, existing, now);
   }
+
+  private ingestIncompleteFile(libraryId: number, filePath: string): void {
+    const stats = statSync(filePath);
+    const now = this.database.now();
+    const existing = this.database.db.select().from(books).where(eq(books.filePath, filePath)).get();
+    const seriesInfo = this.resolveSeries(basename(filePath, extname(filePath)), filePath);
+    const values = {
+      libraryId,
+      seriesId: seriesInfo.seriesId,
+      title: basename(filePath, extname(filePath)),
+      author: null,
+      description: null,
+      isbn: null,
+      isbn13: null,
+      identifiersJson: JSON.stringify({ candidates: [], isbn10: null, isbn13: null }),
+      localMetadataJson: JSON.stringify({
+        title: basename(filePath, extname(filePath)),
+        author: null,
+        year: null,
+        isbn: null,
+        fileTitle: basename(filePath, extname(filePath)),
+        raw: {
+          title: basename(filePath, extname(filePath)),
+          author: null,
+          publishedDate: null,
+          fileName: basename(filePath, extname(filePath))
+        }
+      }),
+      language: null,
+      publisher: null,
+      publishedDate: null,
+      volumeNumber: seriesInfo.volumeNumber,
+      volumeLabel: seriesInfo.volumeLabel,
+      format: bookFormatFromPath(filePath),
+      filePath,
+      coverPath: null,
+      metadataStatus: "none" as const,
+      metadataProvenanceJson: JSON.stringify({ title: "local" }),
+      scanStatus: "failed" as const,
+      enrichmentStatus: "failed" as const,
+      fileSize: stats.size,
+      fileMtime: stats.mtime.toISOString(),
+      updatedAt: now
+    };
+
+    this.upsertBookByFilePath(values, existing, now);
+  }
+
+  private upsertBookByFilePath(
+    values: Omit<typeof books.$inferInsert, "createdAt">,
+    existing: typeof books.$inferSelect | undefined,
+    createdAt: string
+  ): void {
+    if (existing) {
+      this.database.db.update(books).set(preserveExistingBookValues(values, existing)).where(eq(books.id, existing.id)).run();
+      return;
+    }
+    try {
+      this.database.db.insert(books).values({ ...values, createdAt }).run();
+      return;
+    } catch (error) {
+      if (!isUniqueFilePathError(error)) throw error;
+      const current = this.database.db.select().from(books).where(eq(books.filePath, values.filePath)).get();
+      if (!current) throw error;
+      this.database.db.update(books).set(preserveExistingBookValues(values, current)).where(eq(books.id, current.id)).run();
+    }
+  }
+
+  private removeMissingBooks(libraryId: number, seen: Set<string>): number {
+    const existing = this.database.db.select({ id: books.id, filePath: books.filePath }).from(books).where(eq(books.libraryId, libraryId)).all();
+    const missing = existing.filter((book) => !seen.has(book.filePath) && !existsSync(book.filePath));
+    if (!missing.length) return 0;
+    this.database.db.delete(books).where(inArray(books.id, missing.map((book) => book.id))).run();
+    return missing.length;
+  }
+
+  private shouldAutoEnrichNewBooks(): boolean {
+    return Boolean(
+      this.database.db
+        .select({ autoEnrichNewBooks: automationSettings.autoEnrichNewBooks })
+        .from(automationSettings)
+        .where(eq(automationSettings.id, 1))
+        .get()?.autoEnrichNewBooks
+    );
+  }
+
+  private markBookEnrichmentStatus(id: number, enrichmentStatus: "running" | "succeeded" | "failed"): void {
+    this.database.db.update(books).set({ enrichmentStatus, updatedAt: this.database.now() }).where(eq(books.id, id)).run();
+  }
+
+  private resolveSeries(title: string, filePath: string): { seriesId: number; volumeNumber: number | null; volumeLabel: string | null } {
+    const parsed = extractSeriesVolume(title, filePath);
+    const now = this.database.now();
+    const row = this.database.db
+      .insert(series)
+      .values({
+        title: parsed.seriesTitle,
+        normalizedTitle: parsed.normalizedSeriesTitle,
+        description: null,
+        publisher: null,
+        createdAt: now,
+        updatedAt: now
+      })
+      .onConflictDoUpdate({
+        target: series.normalizedTitle,
+        set: { title: parsed.seriesTitle, updatedAt: now }
+      })
+      .returning({ id: series.id })
+      .get();
+    return { seriesId: row.id, volumeNumber: parsed.volumeNumber, volumeLabel: parsed.volumeLabel };
+  }
+}
+
+type ScanFailure = {
+  filePath: string;
+  error: string;
+};
+
+export function scanDigest(scanned: number, removed: number, failures: ScanFailure[], suffix?: string): string {
+  const base = suffix ? `Scanned ${scanned} file(s) ${suffix}` : `Scanned ${scanned} file(s), removed ${removed} missing book(s)`;
+  if (!failures.length) return base;
+  const examples = failures
+    .slice(0, 3)
+    .map((failure) => `${basename(failure.filePath)}: ${truncate(failure.error)}`)
+    .join("; ");
+  const extra = failures.length > 3 ? `; ${failures.length - 3} more` : "";
+  return `${base}, ${failures.length} incomplete file(s): ${examples}${extra}`;
+}
+
+export function enrichmentDigest(enriched: number, failures: ScanFailure[]): string {
+  const base = `Enriched ${enriched} book(s)`;
+  if (!failures.length) return base;
+  const examples = failures
+    .slice(0, 3)
+    .map((failure) => `${basename(failure.filePath)}: ${truncate(failure.error)}`)
+    .join("; ");
+  const extra = failures.length > 3 ? `; ${failures.length - 3} more` : "";
+  return `${base}, ${failures.length} incomplete book(s): ${examples}${extra}`;
+}
+
+function errorMessage(error: unknown): string {
+  if (error instanceof Error && error.message) return truncate(error.message);
+  return truncate(String(error));
+}
+
+function truncate(value: string): string {
+  return value.length > 120 ? `${value.slice(0, 117)}...` : value;
 }
 
 function* walkBooks(root: string): Generator<string> {
@@ -84,8 +306,62 @@ function* walkBooks(root: string): Generator<string> {
     }
     if (!entry.isFile()) continue;
     const extension = extname(entry.name).toLowerCase();
-    if (extension === ".epub" || extension === ".pdf") {
+    if (extension === ".epub" || extension === ".pdf" || extension === ".cbz" || extension === ".cbr") {
       yield path;
     }
   }
 }
+
+function bookFormatFromPath(filePath: string): "epub" | "pdf" | "cbz" | "cbr" {
+  const extension = extname(filePath).toLowerCase();
+  if (extension === ".epub") return "epub";
+  if (extension === ".cbz") return "cbz";
+  if (extension === ".cbr") return "cbr";
+  return "pdf";
+}
+
+export function preserveExistingBookValues<T extends Partial<typeof books.$inferInsert>>(values: T, existing: typeof books.$inferSelect): T {
+  const next = { ...values };
+  if (next.scanStatus === "failed" && existing.title) {
+    next.title = existing.title as never;
+  }
+  for (const field of ["author", "description", "isbn", "isbn13", "language", "publisher", "publishedDate", "coverPath", "seriesId", "volumeNumber", "volumeLabel"] as const) {
+    if (field === "publishedDate") {
+      next.publishedDate = (normalizePublishedDate(next.publishedDate) ?? normalizePublishedDate(existing.publishedDate)) as never;
+      continue;
+    }
+    if (next[field] == null && existing[field] != null) {
+      next[field] = existing[field] as never;
+    }
+  }
+  next.metadataStatus = computeMetadataStatus(next, existing.metadataStatus) as never;
+  next.metadataProvenanceJson = mergeProvenanceJson(String(next.metadataProvenanceJson ?? "{}"), existing.metadataProvenanceJson) as never;
+  return next;
+}
+
+function computeMetadataStatus(values: Partial<typeof books.$inferInsert>, existingStatus: string): "enriched" | "partial" | "none" {
+  const hasCover = Boolean(values.coverPath);
+  const filled = [values.author, values.description, values.isbn, values.language, values.publisher, values.publishedDate].filter(Boolean).length;
+  const computed = hasCover && filled >= 2 ? "enriched" : hasCover || filled > 0 ? "partial" : "none";
+  const rank = { none: 0, partial: 1, enriched: 2 } as const;
+  const safeExisting = existingStatus === "enriched" || existingStatus === "partial" || existingStatus === "none" ? existingStatus : "none";
+  return rank[computed] >= rank[safeExisting] ? computed : safeExisting;
+}
+
+function mergeProvenanceJson(nextJson: string, existingJson: string | null): string {
+  return JSON.stringify({ ...parseJsonObject(existingJson), ...parseJsonObject(nextJson) });
+}
+
+function parseJsonObject(value: string | null): Record<string, unknown> {
+  if (!value) return {};
+  try {
+    const parsed = JSON.parse(value) as unknown;
+    return parsed && typeof parsed === "object" && !Array.isArray(parsed) ? (parsed as Record<string, unknown>) : {};
+  } catch {
+    return {};
+  }
+}
+
+function isUniqueFilePathError(error: unknown): boolean {
+  return error instanceof Error && error.message.includes("UNIQUE constraint failed: books.file_path");
+}

apps/web/nginx/default.conf

@@ -4,26 +4,50 @@ server {
   root /usr/share/nginx/html;
   index index.html;
 
-  location /auth/ {
-    proxy_pass http://api:3000/auth/;
+  location = /sw.js {
+    add_header Cache-Control "no-cache, no-store, must-revalidate";
+    try_files /sw.js =404;
+  }
+
+  location = /index.html {
+    add_header Cache-Control "no-cache, no-store, must-revalidate";
+    try_files /index.html =404;
+  }
+
+  location /assets/ {
+    add_header Cache-Control "public, max-age=31536000, immutable";
+    try_files $uri =404;
+  }
+
+  location ^~ /auth {
+    proxy_pass http://api:3000;
     proxy_set_header Host $host;
     proxy_set_header X-Real-IP $remote_addr;
   }
 
-  location /admin/ {
-    proxy_pass http://api:3000/admin/;
+  location ^~ /admin {
+    if ($http_accept ~* "text/html") {
+      rewrite ^ /index.html last;
+    }
+    proxy_pass http://api:3000;
     proxy_set_header Host $host;
     proxy_set_header X-Real-IP $remote_addr;
   }
 
-  location /books/ {
-    proxy_pass http://api:3000/books/;
+  location ^~ /books {
+    proxy_pass http://api:3000;
     proxy_set_header Host $host;
     proxy_set_header X-Real-IP $remote_addr;
   }
 
-  location /progress/ {
-    proxy_pass http://api:3000/progress/;
+  location ^~ /series {
+    proxy_pass http://api:3000;
+    proxy_set_header Host $host;
+    proxy_set_header X-Real-IP $remote_addr;
+  }
+
+  location ^~ /progress {
+    proxy_pass http://api:3000;
     proxy_set_header Host $host;
     proxy_set_header X-Real-IP $remote_addr;
   }

apps/web/package.json

@@ -22,6 +22,7 @@
     "vite": "^8.2.2"
   },
   "devDependencies": {
+    "@napi-rs/canvas": "1.0.7",
     "@types/react": "^19.2.18",
     "@types/react-dom": "^19.2.3",
     "typescript": "^5.7.3",

apps/web/public/sw.js

@@ -1,5 +1,5 @@
-const CACHE_NAME = "readabook-shell-v1";
-const SHELL = ["/", "/home", "/manifest.webmanifest", "/icons/readabook.svg"];
+const CACHE_NAME = "readabook-shell-v2";
+const SHELL = ["/", "/index.html", "/manifest.webmanifest", "/icons/readabook.svg"];
 
 self.addEventListener("install", (event) => {
   event.waitUntil(caches.open(CACHE_NAME).then((cache) => cache.addAll(SHELL)));
@@ -18,5 +18,19 @@ self.addEventListener("fetch", (event) => {
   if (event.request.method !== "GET" || ["/auth", "/admin", "/books", "/progress"].some((path) => url.pathname.startsWith(path))) {
     return;
   }
-  event.respondWith(fetch(event.request).catch(() => caches.match(event.request).then((hit) => hit || caches.match("/"))));
+  if (event.request.mode === "navigate") {
+    event.respondWith(
+      fetch(event.request)
+        .then((response) => {
+          const copy = response.clone();
+          caches.open(CACHE_NAME).then((cache) => cache.put("/index.html", copy));
+          return response;
+        })
+        .catch(() => caches.match("/index.html").then((hit) => hit || caches.match("/")))
+    );
+    return;
+  }
+  event.respondWith(
+    caches.match(event.request).then((hit) => hit || fetch(event.request))
+  );
 });

apps/web/src/App.tsx

@@ -1,7 +1,9 @@
 import { useEffect, useState } from "react";
 import type { Session } from "./api/types";
 import { api } from "./api/client";
+import { isPrivateRoute } from "./auth/routing";
 import { AppShell } from "./layout/AppShell";
+import { AdminAutomationPage } from "./pages/AdminAutomationPage";
 import { AdminPage } from "./pages/AdminPage";
 import { BookPage } from "./pages/BookPage";
 import { HomePage } from "./pages/HomePage";
@@ -10,8 +12,9 @@ import { LoginPage } from "./pages/LoginPage";
 import { ProfilePage } from "./pages/ProfilePage";
 import { ReaderPage } from "./pages/ReaderPage";
 import { SearchPage } from "./pages/SearchPage";
+import { SeriesPage } from "./pages/SeriesPage";
 import { SetupPage } from "./pages/SetupPage";
-import { parseRoute, type Route } from "./router";
+import { navigate, parseRoute, type Route } from "./router";
 
 function renderRoute(route: Route, session: Session, refreshSession: () => Promise<void>) {
   if (route.name === "login") return <LoginPage onSessionChange={refreshSession} />;
@@ -22,6 +25,8 @@ function renderRoute(route: Route, session: Session, refreshSession: () => Promi
       <HomePage />
     ) : route.name === "library" ? (
       <LibraryPage libraryId={route.libraryId} />
+    ) : route.name === "catalogSeries" ? (
+      <SeriesPage seriesName={route.seriesName} />
     ) : route.name === "book" ? (
       <BookPage bookId={route.bookId} />
     ) : route.name === "reader" ? (
@@ -30,19 +35,27 @@ function renderRoute(route: Route, session: Session, refreshSession: () => Promi
       <SearchPage />
     ) : route.name === "me" ? (
       <ProfilePage session={session} onSessionChange={refreshSession} />
+    ) : route.name === "admin" && route.section === "automation" ? (
+      <AdminAutomationPage />
     ) : (
       <AdminPage />
     );
 
-  return <AppShell session={session}>{content}</AppShell>;
+  return (
+    <AppShell session={session} readerLayout={route.name === "reader"}>
+      {content}
+    </AppShell>
+  );
 }
 
 export function App() {
   const [route, setRoute] = useState(parseRoute());
   const [session, setSession] = useState<Session>({ user: null, degraded: false });
+  const [sessionChecked, setSessionChecked] = useState(false);
 
   async function refreshSession() {
     setSession(await api.session());
+    setSessionChecked(true);
   }
 
   useEffect(() => {
@@ -55,5 +68,35 @@ export function App() {
     return () => window.removeEventListener("popstate", listener);
   }, []);
 
+  useEffect(() => {
+    const listener = () => {
+      setSession({ user: null, degraded: false });
+      setSessionChecked(true);
+      if (isPrivateRoute(parseRoute())) navigate("/login");
+    };
+    window.addEventListener("readabook:session-expired", listener);
+    return () => window.removeEventListener("readabook:session-expired", listener);
+  }, []);
+
+  useEffect(() => {
+    if (sessionChecked && !session.user && isPrivateRoute(route)) navigate("/login");
+  }, [route, session.user, sessionChecked]);
+
+  if (!sessionChecked && isPrivateRoute(route)) {
+    return (
+      <div className="auth-surface">
+        <section className="auth-hero">
+          <p>Cabinet de curiosites numerique</p>
+          <h1>ReadaBook</h1>
+          <span>Verification de session.</span>
+        </section>
+      </div>
+    );
+  }
+
+  if (sessionChecked && !session.user && isPrivateRoute(route)) {
+    return <LoginPage onSessionChange={refreshSession} />;
+  }
+
   return renderRoute(route, session, refreshSession);
 }

apps/web/src/api/client.test.ts

@@ -0,0 +1,151 @@
+import { afterEach, describe, expect, it, vi } from "vitest";
+import { api, ApiFallbackError, getApiFallback } from "./client";
+
+afterEach(() => {
+  vi.unstubAllGlobals();
+});
+
+describe("api fallback helpers", () => {
+  it("extracts typed fallback payloads", () => {
+    expect(getApiFallback<string[]>(new ApiFallbackError("offline", ["demo"]))).toEqual(["demo"]);
+  });
+
+  it("ignores non fallback errors", () => {
+    expect(getApiFallback<string[]>(new Error("boom"))).toBeUndefined();
+  });
+
+  it("does not cap the home catalogue request to the first 50 books", async () => {
+    const fetchMock = vi.fn().mockResolvedValue(
+      new Response(JSON.stringify([]), {
+        status: 200,
+        headers: { "Content-Type": "application/json" }
+      })
+    );
+    vi.stubGlobal("fetch", fetchMock);
+
+    await api.books();
+
+    expect(String(fetchMock.mock.calls[0][0])).not.toContain("limit=50");
+  });
+
+  it("does not cap search requests to the first 50 books", async () => {
+    const fetchMock = vi.fn().mockResolvedValue(
+      new Response(JSON.stringify([]), {
+        status: 200,
+        headers: { "Content-Type": "application/json" }
+      })
+    );
+    vi.stubGlobal("fetch", fetchMock);
+
+    await api.search("daredevil");
+
+    expect(String(fetchMock.mock.calls[0][0])).not.toContain("limit=50");
+  });
+
+  it("does not send JSON content-type for bodyless delete requests", async () => {
+    const fetchMock = vi.fn().mockResolvedValue(
+      new Response(JSON.stringify({ ok: true }), {
+        status: 200,
+        headers: { "Content-Type": "application/json" }
+      })
+    );
+    vi.stubGlobal("fetch", fetchMock);
+
+    await api.deleteLibrary(42);
+
+    const init = fetchMock.mock.calls[0][1] as RequestInit;
+    const headers = new Headers(init.headers);
+    expect(init.method).toBe("DELETE");
+    expect(headers.has("Content-Type")).toBe(false);
+  });
+
+  it("surfaces create library API errors without fallback", async () => {
+    const fetchMock = vi.fn().mockResolvedValue(
+      new Response(JSON.stringify({ message: "Library path does not exist" }), {
+        status: 400,
+        statusText: "Bad Request",
+        headers: { "Content-Type": "application/json" }
+      })
+    );
+    vi.stubGlobal("fetch", fetchMock);
+
+    await expect(api.createLibrary({ name: "Books", path: "/missing", enabled: true })).rejects.toThrow("Library path does not exist");
+  });
+
+  it("does not fallback when scan enqueue fails", async () => {
+    const fetchMock = vi.fn().mockRejectedValue(new Error("offline"));
+    vi.stubGlobal("fetch", fetchMock);
+
+    await expect(api.scanLibrary(42)).rejects.toThrow("offline");
+  });
+
+  it("keeps reader preferences locally when the backend contract is absent", async () => {
+    const storage = new Map<string, string>();
+    vi.stubGlobal("localStorage", {
+      getItem: (key: string) => storage.get(key) ?? null,
+      setItem: (key: string, value: string) => storage.set(key, value),
+      removeItem: (key: string) => storage.delete(key),
+      clear: () => storage.clear()
+    });
+    const fetchMock = vi.fn().mockResolvedValue(new Response("", { status: 404, statusText: "Not Found" }));
+    vi.stubGlobal("fetch", fetchMock);
+
+    await expect(api.readerPreferences(8)).resolves.toEqual({ mode: "horizontal", fit: "page" });
+    await expect(api.saveReaderPreferences(8, { mode: "vertical", fit: "width" })).resolves.toEqual({ mode: "vertical", fit: "width" });
+    expect(storage.get("readabook:reader-preferences:8")).toBe(JSON.stringify({ mode: "vertical", fit: "width" }));
+  });
+
+  it("sends metadata source updates to the admin endpoint", async () => {
+    const fetchMock = vi.fn().mockResolvedValue(
+      new Response(JSON.stringify({ isbnPriorityEnabled: false, sources: [] }), {
+        status: 200,
+        headers: { "Content-Type": "application/json" }
+      })
+    );
+    vi.stubGlobal("fetch", fetchMock);
+
+    await api.updateMetadataSources({
+      isbnPriorityEnabled: false,
+      sources: [{ provider: "openlibrary", enabled: true, priority: 1 }]
+    });
+
+    expect(fetchMock.mock.calls[0][0]).toBe("/admin/metadata-sources");
+    const init = fetchMock.mock.calls[0][1] as RequestInit;
+    expect(init.method).toBe("PUT");
+    expect(JSON.parse(init.body as string)).toEqual({
+      isbnPriorityEnabled: false,
+      sources: [{ provider: "openlibrary", enabled: true, priority: 1 }]
+    });
+  });
+
+  it("sends automation settings to the admin endpoint", async () => {
+    const fetchMock = vi.fn().mockResolvedValue(
+      new Response(
+        JSON.stringify({
+          watchLibraries: true,
+          autoEnrichNewBooks: true,
+          scanSchedule: { frequency: "daily", time: "03:00", dayOfWeek: 1 },
+          enrichSchedule: { frequency: "disabled", time: "04:00", dayOfWeek: 1 }
+        }),
+        {
+          status: 200,
+          headers: { "Content-Type": "application/json" }
+        }
+      )
+    );
+    vi.stubGlobal("fetch", fetchMock);
+
+    await api.updateAutomationSettings({
+      watchLibraries: true,
+      scanSchedule: { frequency: "daily", time: "03:00", dayOfWeek: 1 }
+    });
+
+    expect(fetchMock.mock.calls[0][0]).toBe("/admin/automation");
+    const init = fetchMock.mock.calls[0][1] as RequestInit;
+    expect(init.method).toBe("PUT");
+    expect(JSON.parse(init.body as string)).toEqual({
+      watchLibraries: true,
+      scanSchedule: { frequency: "daily", time: "03:00", dayOfWeek: 1 }
+    });
+  });
+});

apps/web/src/api/client.ts

@@ -1,19 +1,35 @@
 import type {
   BookDto,
   BookQueryDto,
+  AuthStatusDto,
+  AutomationSettingsDto,
   BootstrapAdminDto,
   CreateLibraryDto,
   JobDto,
   LibraryDto,
   LoginDto,
+  MetadataSourcesConfigDto,
   ProgressDto,
+  UpdateAutomationSettingsDto,
+  UpdateAccountDto,
+  UpdateMetadataSourcesConfigDto,
   UpdateProgressDto,
   UserDto
 } from "@readabook/shared";
-import { mockBooks, mockContinue, mockJobs, mockLibraries, mockProgress, mockUser } from "./mockData";
-import type { ContinueItem, Session } from "./types";
+import {
+  mockAutomationSettings,
+  mockBooks,
+  mockContinue,
+  mockJobs,
+  mockLibraries,
+  mockMetadataSources,
+  mockProgress,
+  mockUser
+} from "./mockData";
+import type { CbzPagesDto, ContinueItem, ReaderPreferencesDto, Session } from "./types";
 
 const API_BASE = import.meta.env.VITE_API_BASE_URL ?? "";
+const READER_PREFERENCES_PREFIX = "readabook:reader-preferences:";
 
 type RequestOptions = RequestInit & {
   fallback?: unknown;
@@ -28,20 +44,54 @@ export class ApiFallbackError extends Error {
   }
 }
 
+export class ApiHttpError extends Error {
+  constructor(
+    public readonly status: number,
+    message: string
+  ) {
+    super(message);
+  }
+}
+
+export function getApiFallback<T>(error: unknown): T | undefined {
+  return error instanceof ApiFallbackError ? (error.fallback as T) : undefined;
+}
+
+function apiErrorMessage(detail: string, fallback: string): string {
+  if (!detail) return fallback;
+  try {
+    const parsed = JSON.parse(detail) as { message?: unknown; error?: unknown };
+    if (typeof parsed.message === "string") return parsed.message;
+    if (Array.isArray(parsed.message)) return parsed.message.join(", ");
+    if (typeof parsed.error === "string") return parsed.error;
+  } catch {
+    return detail;
+  }
+  return fallback;
+}
+
+function requestHeaders(options: RequestOptions): Headers {
+  const headers = new Headers(options.headers);
+  if (options.body !== undefined && !headers.has("Content-Type")) {
+    headers.set("Content-Type", "application/json");
+  }
+  return headers;
+}
+
 async function request<T>(path: string, options: RequestOptions = {}): Promise<T> {
   try {
     const response = await fetch(`${API_BASE}${path}`, {
       ...options,
       credentials: "include",
-      headers: {
-        "Content-Type": "application/json",
-        ...options.headers
-      }
+      headers: requestHeaders(options)
     });
 
     if (!response.ok) {
+      if (response.status === 401 && typeof window !== "undefined") {
+        window.dispatchEvent(new CustomEvent("readabook:session-expired"));
+      }
       const detail = await response.text();
-      throw new Error(detail || `${response.status} ${response.statusText}`);
+      throw new ApiHttpError(response.status, apiErrorMessage(detail, `${response.status} ${response.statusText}`));
     }
 
     return (await response.json()) as T;
@@ -62,6 +112,30 @@ function queryString(query: Partial<BookQueryDto>): string {
   return value ? `?${value}` : "";
 }
 
+function readerPreferencesKey(bookId: number): string {
+  return `${READER_PREFERENCES_PREFIX}${bookId}`;
+}
+
+function readLocalReaderPreferences(bookId: number): ReaderPreferencesDto {
+  if (typeof localStorage === "undefined") return { mode: "horizontal", fit: "page" };
+  const raw = localStorage.getItem(readerPreferencesKey(bookId));
+  if (!raw) return { mode: "horizontal", fit: "page" };
+  try {
+    const parsed = JSON.parse(raw) as Partial<ReaderPreferencesDto>;
+    return {
+      mode: parsed.mode === "vertical" ? "vertical" : "horizontal",
+      fit: parsed.fit === "width" ? "width" : "page"
+    };
+  } catch {
+    return { mode: "horizontal", fit: "page" };
+  }
+}
+
+function writeLocalReaderPreferences(bookId: number, preferences: ReaderPreferencesDto): void {
+  if (typeof localStorage === "undefined") return;
+  localStorage.setItem(readerPreferencesKey(bookId), JSON.stringify(preferences));
+}
+
 export const api = {
   async session(): Promise<Session> {
     try {
@@ -71,6 +145,9 @@ export const api = {
       return { user: null, degraded: false };
     }
   },
+  async authStatus(): Promise<AuthStatusDto> {
+    return request<AuthStatusDto>("/auth/status");
+  },
   async bootstrap(input: BootstrapAdminDto): Promise<UserDto> {
     const result = await request<UserDto>("/auth/bootstrap", { method: "POST", body: JSON.stringify(input) });
     return result;
@@ -82,11 +159,14 @@ export const api = {
   async logout(): Promise<void> {
     await request<{ ok: true }>("/auth/logout", { method: "POST" });
   },
+  async updateMe(input: UpdateAccountDto): Promise<UserDto> {
+    return request<UserDto>("/auth/me", { method: "PATCH", body: JSON.stringify(input) });
+  },
   async books(query: Partial<BookQueryDto> = {}): Promise<BookDto[]> {
-    return request<BookDto[]>(`/books${queryString({ limit: 50, offset: 0, ...query })}`, { fallback: mockBooks });
+    return request<BookDto[]>(`/books${queryString(query)}`, { fallback: mockBooks });
   },
   async search(query: string): Promise<BookDto[]> {
-    return request<BookDto[]>(`/books/search${queryString({ q: query, limit: 50, offset: 0 })}`, { fallback: mockBooks });
+    return request<BookDto[]>(`/books/search${queryString({ q: query })}`, { fallback: mockBooks });
   },
   async book(id: number): Promise<BookDto> {
     const fallback = mockBooks.find((book) => book.id === id) ?? mockBooks[0];
@@ -98,6 +178,12 @@ export const api = {
   bookCoverUrl(id: number): string {
     return `${API_BASE}/books/${id}/cover`;
   },
+  async cbzPages(id: number): Promise<CbzPagesDto> {
+    return request<CbzPagesDto>(`/books/${id}/pages`);
+  },
+  cbzPageUrl(id: number, page: number): string {
+    return `${API_BASE}/books/${id}/pages/${page}`;
+  },
   async progress(bookId: number): Promise<ProgressDto | null> {
     try {
       return await request<ProgressDto>(`/progress/${bookId}`, {
@@ -115,6 +201,31 @@ export const api = {
       fallback: { bookId, ...input, updatedAt: new Date().toISOString() }
     });
   },
+  async readerPreferences(bookId: number): Promise<ReaderPreferencesDto> {
+    try {
+      const preferences = await request<ReaderPreferencesDto>(`/reader/preferences/${bookId}`, {
+        fallback: readLocalReaderPreferences(bookId)
+      });
+      writeLocalReaderPreferences(bookId, preferences);
+      return preferences;
+    } catch (error) {
+      if (error instanceof ApiFallbackError) return error.fallback as ReaderPreferencesDto;
+      return readLocalReaderPreferences(bookId);
+    }
+  },
+  async saveReaderPreferences(bookId: number, input: ReaderPreferencesDto): Promise<ReaderPreferencesDto> {
+    writeLocalReaderPreferences(bookId, input);
+    try {
+      return await request<ReaderPreferencesDto>(`/reader/preferences/${bookId}`, {
+        method: "PUT",
+        body: JSON.stringify(input),
+        fallback: input
+      });
+    } catch (error) {
+      if (error instanceof ApiFallbackError) return error.fallback as ReaderPreferencesDto;
+      return input;
+    }
+  },
   async continueReading(): Promise<ContinueItem[]> {
     return request<ContinueItem[]>("/progress/continue", { fallback: mockContinue });
   },
@@ -124,17 +235,45 @@ export const api = {
   async createLibrary(input: CreateLibraryDto): Promise<LibraryDto> {
     return request<LibraryDto>("/admin/libraries", {
       method: "POST",
-      body: JSON.stringify(input),
-      fallback: { id: Date.now(), createdAt: new Date().toISOString(), updatedAt: new Date().toISOString(), ...input }
+      body: JSON.stringify(input)
     });
   },
+  async deleteLibrary(id: number): Promise<void> {
+    await request<{ ok: true }>(`/admin/libraries/${id}`, { method: "DELETE" });
+  },
   async scanLibrary(id: number): Promise<JobDto> {
-    return request<JobDto>(`/admin/libraries/${id}/scan`, { method: "POST", fallback: mockJobs[0] });
+    return request<JobDto>(`/admin/libraries/${id}/scan`, { method: "POST" });
   },
   async jobs(): Promise<JobDto[]> {
     return request<JobDto[]>("/admin/jobs", { fallback: mockJobs });
   },
   async users(): Promise<UserDto[]> {
     return request<UserDto[]>("/admin/users", { fallback: [mockUser] });
+  },
+  async metadataSources(): Promise<MetadataSourcesConfigDto> {
+    return request<MetadataSourcesConfigDto>("/admin/metadata-sources", { fallback: mockMetadataSources });
+  },
+  async updateMetadataSources(input: UpdateMetadataSourcesConfigDto): Promise<MetadataSourcesConfigDto> {
+    return request<MetadataSourcesConfigDto>("/admin/metadata-sources", {
+      method: "PUT",
+      body: JSON.stringify(input),
+      fallback: mockMetadataSources
+    });
+  },
+  async automationSettings(): Promise<AutomationSettingsDto> {
+    return request<AutomationSettingsDto>("/admin/automation", { fallback: mockAutomationSettings });
+  },
+  async updateAutomationSettings(input: UpdateAutomationSettingsDto): Promise<AutomationSettingsDto> {
+    return request<AutomationSettingsDto>("/admin/automation", {
+      method: "PUT",
+      body: JSON.stringify(input),
+      fallback: mockAutomationSettings
+    });
+  },
+  async runAutomationScan(): Promise<JobDto> {
+    return request<JobDto>("/admin/automation/run-scan", { method: "POST", fallback: mockJobs[0] });
+  },
+  async runAutomationEnrich(): Promise<JobDto> {
+    return request<JobDto>("/admin/automation/run-enrich", { method: "POST", fallback: mockJobs[0] });
   }
 };

apps/web/src/api/mockData.ts

@@ -1,8 +1,27 @@
-import type { BookDto, JobDto, LibraryDto, ProgressDto, UserDto } from "@readabook/shared";
+import type { AutomationSettingsDto, BookDto, JobDto, LibraryDto, MetadataSourcesConfigDto, ProgressDto, UserDto } from "@readabook/shared";
 import type { ContinueItem } from "./types";
 
 const now = new Date().toISOString();
 
+type BookPipelineStatus = "idle" | "running" | "succeeded" | "failed";
+type BookMetadataStatus = "enriched" | "partial" | "none";
+type MockBookDto = Omit<BookDto, "metadataStatus" | "metadataProvenance" | "scanStatus" | "enrichmentStatus"> & {
+  metadataStatus?: BookMetadataStatus;
+  metadataProvenance?: Record<string, string>;
+  scanStatus?: BookPipelineStatus;
+  enrichmentStatus?: BookPipelineStatus;
+};
+
+function mockBook(book: MockBookDto): BookDto {
+  return {
+    metadataStatus: "partial",
+    metadataProvenance: { local: "fixture" },
+    scanStatus: "idle",
+    enrichmentStatus: "idle",
+    ...book
+  } as BookDto;
+}
+
 export const mockUser: UserDto = {
   id: 1,
   email: "admin@readabook.local",
@@ -17,13 +36,14 @@ export const mockLibraries: LibraryDto[] = [
 ];
 
 export const mockBooks: BookDto[] = [
-  {
+  mockBook({
     id: 1,
     libraryId: 1,
     title: "L'Herbier des machines",
     author: "M. Valrose",
     description: "Fragments, croquis et notes rassemblees autour d'automates introuvables.",
     isbn: null,
+    isbn13: null,
     language: "fr",
     publisher: "Cabinet ReadaBook",
     publishedDate: "1908",
@@ -34,14 +54,15 @@ export const mockBooks: BookDto[] = [
     fileMtime: now,
     createdAt: now,
     updatedAt: now
-  },
-  {
+  }),
+  mockBook({
     id: 2,
     libraryId: 2,
     title: "Cartographie des songes",
     author: "I. Nadir",
     description: "Un atlas annote ou chaque page devient une vitrine de lecture.",
     isbn: null,
+    isbn13: null,
     language: "fr",
     publisher: "ReadaBook",
     publishedDate: "1921",
@@ -52,12 +73,52 @@ export const mockBooks: BookDto[] = [
     fileMtime: now,
     createdAt: now,
     updatedAt: now
-  }
+  }),
+  mockBook({
+    id: 3,
+    libraryId: 2,
+    title: "Les vitrines de verre",
+    author: "A. Muze",
+    description: "Un recit graphique indexe comme archive CBZ.",
+    isbn: null,
+    isbn13: null,
+    language: "fr",
+    publisher: "ReadaBook",
+    publishedDate: "1934",
+    format: "cbz",
+    filePath: "/library/cbz/vitrines.cbz",
+    coverPath: null,
+    fileSize: 12600000,
+    fileMtime: now,
+    createdAt: now,
+    updatedAt: now
+  }),
+  mockBook({
+    id: 4,
+    libraryId: 2,
+    title: "Cabinet noir",
+    author: "L. Rar",
+    description: "Archive CBR lue avec le même parcours paginé que les comics CBZ.",
+    isbn: null,
+    isbn13: null,
+    language: "fr",
+    publisher: "ReadaBook",
+    publishedDate: "1937",
+    format: "cbr",
+    filePath: "/library/cbr/cabinet-noir.cbr",
+    coverPath: null,
+    fileSize: 14800000,
+    fileMtime: now,
+    createdAt: now,
+    updatedAt: now
+  })
 ];
 
 export const mockProgress: ProgressDto[] = [
   { bookId: 1, locator: "mock:chapter-3", percent: 42, updatedAt: now },
-  { bookId: 2, locator: "mock:page-12", percent: 18, updatedAt: now }
+  { bookId: 2, locator: "pdf:page:12", percent: 18, updatedAt: now },
+  { bookId: 3, locator: "cbz:page:4", percent: 40, updatedAt: now },
+  { bookId: 4, locator: "cbr:page:6", percent: 60, updatedAt: now }
 ];
 
 export const mockContinue: ContinueItem[] = mockProgress.map((progress) => ({
@@ -68,3 +129,20 @@ export const mockContinue: ContinueItem[] = mockProgress.map((progress) => ({
 export const mockJobs: JobDto[] = [
   { id: 1, type: "scan-library", status: "succeeded", detail: "2 ouvrages indexes", error: null, createdAt: now, updatedAt: now }
 ];
+
+export const mockMetadataSources: MetadataSourcesConfigDto = {
+  isbnPriorityEnabled: true,
+  sources: [
+    { provider: "local", enabled: true, priority: 0, hasApiKey: false },
+    { provider: "openlibrary", enabled: true, priority: 1, hasApiKey: false },
+    { provider: "googlebooks", enabled: false, priority: 2, hasApiKey: false },
+    { provider: "bnf", enabled: false, priority: 3, hasApiKey: false }
+  ]
+};
+
+export const mockAutomationSettings: AutomationSettingsDto = {
+  watchLibraries: false,
+  autoEnrichNewBooks: true,
+  scanSchedule: { frequency: "disabled", time: "03:00", dayOfWeek: 1 },
+  enrichSchedule: { frequency: "weekly", time: "04:00", dayOfWeek: 1 }
+};

apps/web/src/api/types.ts

@@ -21,3 +21,32 @@ export type DashboardData = {
   libraries: LibraryDto[];
   jobs: JobDto[];
 };
+
+export type CbzPagesDto = {
+  bookId: number;
+  pageCount: number;
+  pages: Array<{ page: number; name: string }>;
+};
+
+export type ReaderMode = "horizontal" | "vertical";
+
+export type ReaderFit = "page" | "width";
+
+export type ReaderPreferencesDto = {
+  mode: ReaderMode;
+  fit?: ReaderFit;
+};
+
+export function hasActiveCoverWork(jobs: JobDto[]) {
+  return jobs.some((job) => {
+    if (job.status !== "queued" && job.status !== "running") return false;
+    const type = job.type.toLowerCase();
+    return type.includes("scan") || type.includes("enrich") || type.includes("metadata") || type.includes("cover");
+  });
+}
+
+export function isBookCoverUpdating(book: BookDto, fallbackActive = false) {
+  const statuses = book as BookDto & { scanStatus?: string; enrichmentStatus?: string };
+  if (statuses.scanStatus === "running" || statuses.enrichmentStatus === "running") return true;
+  return statuses.scanStatus === undefined && statuses.enrichmentStatus === undefined && fallbackActive;
+}

apps/web/src/auth/errors.test.ts

@@ -0,0 +1,15 @@
+import { describe, expect, it } from "vitest";
+import { ApiHttpError } from "../api/client";
+import { loginErrorMessage } from "./errors";
+
+describe("login error messages", () => {
+  it("maps invalid credentials", () => {
+    expect(loginErrorMessage(new ApiHttpError(401, "Invalid credentials"))).toBe("Identifiants invalides.");
+    expect(loginErrorMessage(new ApiHttpError(403, "Forbidden"))).toBe("Identifiants invalides.");
+  });
+
+  it("maps server and network errors", () => {
+    expect(loginErrorMessage(new ApiHttpError(500, "Internal error"))).toBe("Serveur d'authentification indisponible.");
+    expect(loginErrorMessage(new TypeError("fetch failed"))).toBe("Connexion au serveur impossible.");
+  });
+});

apps/web/src/auth/errors.ts

@@ -0,0 +1,11 @@
+import { ApiHttpError } from "../api/client";
+
+export function loginErrorMessage(error: unknown): string {
+  if (error instanceof ApiHttpError) {
+    if (error.status === 401 || error.status === 403) return "Identifiants invalides.";
+    if (error.status >= 500) return "Serveur d'authentification indisponible.";
+    return "Connexion impossible.";
+  }
+  if (error instanceof TypeError) return "Connexion au serveur impossible.";
+  return "Connexion impossible.";
+}

apps/web/src/auth/routing.test.ts

@@ -0,0 +1,15 @@
+import { describe, expect, it } from "vitest";
+import { isPrivateRoute, isPublicRoute } from "./routing";
+
+describe("auth route guards", () => {
+  it("keeps login and setup public", () => {
+    expect(isPublicRoute({ name: "login" })).toBe(true);
+    expect(isPublicRoute({ name: "setup", step: "admin" })).toBe(true);
+  });
+
+  it("marks catalogue routes private", () => {
+    expect(isPrivateRoute({ name: "home" })).toBe(true);
+    expect(isPrivateRoute({ name: "search" })).toBe(true);
+    expect(isPrivateRoute({ name: "book", bookId: 1 })).toBe(true);
+  });
+});

apps/web/src/auth/routing.ts

@@ -0,0 +1,9 @@
+import type { Route } from "../router";
+
+export function isPublicRoute(route: Route): boolean {
+  return route.name === "login" || route.name === "setup";
+}
+
+export function isPrivateRoute(route: Route): boolean {
+  return !isPublicRoute(route);
+}

apps/web/src/book/description.test.ts

@@ -0,0 +1,14 @@
+import { describe, expect, it } from "vitest";
+import { cleanBookDescription } from "./description";
+
+describe("cleanBookDescription", () => {
+  it("renders catalog HTML as readable plain text", () => {
+    expect(cleanBookDescription("<p>Premier &amp; second.</p><p><strong>Suite</strong>&nbsp;du texte.</p>")).toBe(
+      "Premier & second.\nSuite du texte."
+    );
+  });
+
+  it("falls back when the description is empty after cleanup", () => {
+    expect(cleanBookDescription("<p> </p>")).toBe("Notice absente du catalogue.");
+  });
+});

apps/web/src/book/description.ts

@@ -0,0 +1,28 @@
+const blockBreakPattern = /<\/(p|div|section|article|header|footer|blockquote|li|ul|ol|br|h[1-6])>/gi;
+const tagPattern = /<[^>]*>/g;
+
+function decodeEntities(value: string): string {
+  if (typeof document === "undefined") {
+    return value
+      .replace(/&nbsp;/gi, " ")
+      .replace(/&amp;/gi, "&")
+      .replace(/&lt;/gi, "<")
+      .replace(/&gt;/gi, ">")
+      .replace(/&quot;/gi, '"')
+      .replace(/&#39;/gi, "'");
+  }
+  const textarea = document.createElement("textarea");
+  textarea.innerHTML = value;
+  return textarea.value;
+}
+
+export function cleanBookDescription(description?: string | null): string {
+  if (!description) return "Notice absente du catalogue.";
+  return decodeEntities(description.replace(blockBreakPattern, "\n").replace(tagPattern, " "))
+    .replace(/\r/g, "")
+    .replace(/[ \t]+\n/g, "\n")
+    .replace(/\n[ \t]+/g, "\n")
+    .replace(/[ \t]{2,}/g, " ")
+    .replace(/\n{3,}/g, "\n\n")
+    .trim() || "Notice absente du catalogue.";
+}

apps/web/src/book/metadata.test.ts

@@ -0,0 +1,131 @@
+import { describe, expect, it } from "vitest";
+import type { BookDto } from "@readabook/shared";
+import {
+  bookCardVolumeLabel,
+  bookDisplayTitle,
+  bookMetadataSourceSummary,
+  bookMetadataStateLabel,
+  bookSeriesInfo,
+  bookSeriesLabel,
+  bookVolumeLabel,
+  displayPublishedDate,
+  jobDigestSummary
+} from "./metadata";
+
+type BookFixture = BookDto & {
+  metadataStatus: "enriched" | "partial" | "none";
+  metadataProvenance: Record<string, string>;
+  scanStatus: "idle" | "running" | "succeeded" | "failed";
+  enrichmentStatus: "idle" | "running" | "succeeded" | "failed";
+};
+
+const baseBook: BookFixture = {
+  id: 1,
+  libraryId: 1,
+  title: "Livre test",
+  author: null,
+  description: null,
+  isbn: null,
+  isbn13: null,
+  language: null,
+  publisher: null,
+  publishedDate: null,
+  format: "epub",
+  filePath: "/books/test.epub",
+  coverPath: null,
+  metadataStatus: "none",
+  metadataProvenance: {},
+  scanStatus: "idle",
+  enrichmentStatus: "idle",
+  fileSize: 1,
+  fileMtime: "2026-08-23T00:00:00.000Z",
+  createdAt: "2026-08-23T00:00:00.000Z",
+  updatedAt: "2026-08-23T00:00:00.000Z"
+};
+
+describe("book metadata presentation", () => {
+  it("labels externally enriched books", () => {
+    const book: BookFixture = { ...baseBook, metadataStatus: "enriched", enrichmentStatus: "succeeded" };
+    expect(bookMetadataStateLabel(book)).toBe("enrichi");
+    expect(bookMetadataSourceSummary(book)).toBe("source locale + enrichissement externe");
+  });
+
+  it("labels locally discovered metadata as partial", () => {
+    const book: BookFixture = { ...baseBook, metadataStatus: "partial", author: "Ada", publishedDate: "1998", scanStatus: "succeeded" };
+    expect(bookMetadataStateLabel(book)).toBe("partiel");
+    expect(bookMetadataSourceSummary(book)).toBe("source locale uniquement");
+  });
+
+  it("labels books without exploitable metadata as missing", () => {
+    expect(bookMetadataStateLabel(baseBook)).toBe("non enrichi");
+    expect(bookMetadataSourceSummary(baseBook)).toBe("metadata indisponible");
+  });
+
+  it("accepts optional series fields when the backend exposes them", () => {
+    const book = { ...baseBook, title: "Nom fichier", series: "Cycle", volumeNumber: 2 } as BookDto & { series: string; volumeNumber: number };
+    expect(bookSeriesLabel(book)).toBe("Cycle · Volume 2");
+    expect(bookDisplayTitle(book)).toBe("Cycle");
+    expect(bookVolumeLabel(book)).toBe("Volume 2");
+  });
+
+  it("uses backend series objects and normalized backend volume labels", () => {
+    const book = {
+      ...baseBook,
+      title: "Daredevil",
+      series: { id: 1, title: "Daredevil", normalizedTitle: "daredevil", description: null, publisher: null, createdAt: baseBook.createdAt, updatedAt: baseBook.updatedAt },
+      volumeNumber: 1,
+      volumeLabel: "001"
+    } as BookDto;
+    expect(bookDisplayTitle(book)).toBe("Daredevil");
+    expect(bookVolumeLabel(book)).toBe("#1");
+    expect(bookSeriesLabel(book)).toBe("Daredevil · #1");
+  });
+
+  it("uses compact and unambiguous volume labels on book cards", () => {
+    expect(bookCardVolumeLabel({ ...baseBook, title: "Solo Leveling T03" })).toBe("T. 3");
+    expect(bookCardVolumeLabel({ ...baseBook, title: "Archive Volume 12" })).toBe("T. 12");
+    expect(bookCardVolumeLabel({ ...baseBook, title: "Daredevil #6" })).toBe("#6");
+  });
+
+  it("hides book card volume labels when the number is absent or ambiguous", () => {
+    const ambiguousBook = { ...baseBook, title: "Nom fichier", series: "Cycle", volumeLabel: "Tome final" } as BookDto & { series: string; volumeLabel: string };
+    expect(bookCardVolumeLabel(ambiguousBook)).toBeNull();
+    expect(bookCardVolumeLabel({ ...baseBook, title: "Livre sans tome" })).toBeNull();
+  });
+
+  it("keeps admin job digest synthetic", () => {
+    expect(
+      jobDigestSummary({
+        id: 1,
+        type: "metadata-enrich",
+        status: "succeeded",
+        detail: null,
+        error: null,
+        createdAt: baseBook.createdAt,
+        updatedAt: baseBook.updatedAt
+      })
+    ).toBe("enrichissement externe");
+  });
+
+  it("hides sentinel and absent publication dates", () => {
+    expect(displayPublishedDate("0101-01-01T00:00:00+00:00")).toBeNull();
+    expect(displayPublishedDate(null)).toBeNull();
+    expect(displayPublishedDate("")).toBeNull();
+  });
+
+  it("renders only the credible publication year", () => {
+    expect(displayPublishedDate("2007")).toBe("2007");
+    expect(displayPublishedDate("2007-07-21T00:00:00+00:00")).toBe("2007");
+    expect(displayPublishedDate("first published in 1998")).toBe("1998");
+  });
+
+  it("normalizes flexible series and volume suffixes from titles", () => {
+    expect(bookSeriesInfo({ ...baseBook, title: "Daredevil 001" })).toEqual({ title: "Daredevil", volumeLabel: "#1", volumeNumber: 1 });
+    expect(bookSeriesInfo({ ...baseBook, title: "Daredevil #6" })).toEqual({ title: "Daredevil", volumeLabel: "#6", volumeNumber: 6 });
+    expect(bookSeriesInfo({ ...baseBook, title: "Solo Leveling T03" })).toEqual({ title: "Solo Leveling", volumeLabel: "Tome 3", volumeNumber: 3 });
+    expect(bookSeriesInfo({ ...baseBook, title: "Eyeshield 21 T02" })).toEqual({ title: "Eyeshield 21", volumeLabel: "Tome 2", volumeNumber: 2 });
+    expect(bookSeriesInfo({ ...baseBook, title: "Archive Tome 3" })).toEqual({ title: "Archive", volumeLabel: "Tome 3", volumeNumber: 3 });
+    expect(bookSeriesInfo({ ...baseBook, title: "Archive Volume 3" })).toEqual({ title: "Archive", volumeLabel: "Volume 3", volumeNumber: 3 });
+    expect(bookSeriesInfo({ ...baseBook, title: "Archive Issue 6" })).toEqual({ title: "Archive", volumeLabel: "#6", volumeNumber: 6 });
+  });
+});

apps/web/src/book/metadata.ts

@@ -0,0 +1,171 @@
+import type { BookDto, JobDto } from "@readabook/shared";
+
+export type BookMetadataState = "enriched" | "partial" | "missing";
+
+const earliestCrediblePublishedYear = 1450;
+
+export type BookSeriesInfo = {
+  title: string;
+  volumeLabel: string | null;
+  volumeNumber: number | null;
+};
+
+type ExtendedBookDto = BookDto & {
+  scanStatus?: "idle" | "running" | "succeeded" | "failed";
+  enrichmentStatus?: "idle" | "running" | "succeeded" | "failed";
+  series?: string | { title?: string | null } | null;
+  seriesTitle?: string | null;
+  collection?: string | null;
+  volumeLabel?: string | null;
+  seriesIndex?: string | number | null;
+  seriesNumber?: string | number | null;
+  volume?: string | number | null;
+  volumeNumber?: string | number | null;
+  issue?: string | number | null;
+  issueNumber?: string | number | null;
+};
+
+function hasValue(value: unknown): value is string | number {
+  if (typeof value === "number") return Number.isFinite(value);
+  return typeof value === "string" && value.trim().length > 0;
+}
+
+export function bookSeriesLabel(book: BookDto): string | null {
+  const series = bookSeriesInfo(book);
+  if (!series) return null;
+  return [series.title, series.volumeLabel].filter(Boolean).join(" · ");
+}
+
+function numericValue(value: unknown): number | null {
+  if (typeof value === "number" && Number.isFinite(value)) return value;
+  if (typeof value !== "string") return null;
+  const match = value.trim().match(/\d+/);
+  if (!match) return null;
+  const parsed = Number(match[0]);
+  return Number.isFinite(parsed) ? parsed : null;
+}
+
+function normalizeVolumeLabel(value: unknown, fallbackKind: "tome" | "volume" | "issue" = "volume"): { label: string; number: number | null } | null {
+  if (!hasValue(value)) return null;
+  const raw = String(value).trim();
+  const number = numericValue(raw);
+  if (!number) return null;
+  if (/^(t|tome)\s*0*\d+$/i.test(raw)) return { label: `Tome ${number}`, number };
+  if (/^(vol\.?|volume)\s*0*\d+$/i.test(raw)) return { label: `Volume ${number}`, number };
+  if (/^(#|issue)\s*0*\d+$/i.test(raw)) return { label: `#${number}`, number };
+  if (/^0\d{2,}$/.test(raw)) return { label: `#${number}`, number };
+  if (fallbackKind === "tome") return { label: `Tome ${number}`, number };
+  if (fallbackKind === "issue") return { label: `#${number}`, number };
+  return { label: `Volume ${number}`, number };
+}
+
+function titleVolumeInfo(title: string): BookSeriesInfo | null {
+  const trimmed = title.trim();
+  const patterns: Array<{ pattern: RegExp; kind: "tome" | "volume" | "issue" }> = [
+    { pattern: /^(.+?)\s+(T|Tome)\s*0*(\d+)$/i, kind: "tome" },
+    { pattern: /^(.+?)\s+(Vol\.?|Volume)\s*0*(\d+)$/i, kind: "volume" },
+    { pattern: /^(.+?)\s+(#|Issue)\s*0*(\d+)$/i, kind: "issue" },
+    { pattern: /^(.+?)\s+0*(\d{3})$/i, kind: "issue" }
+  ];
+  for (const { pattern, kind } of patterns) {
+    const match = trimmed.match(pattern);
+    if (!match) continue;
+    const titlePart = match[1]?.trim();
+    const number = Number(match[3] ?? match[2]);
+    if (!titlePart || !Number.isFinite(number)) continue;
+    const normalized = normalizeVolumeLabel(number, kind);
+    if (!normalized) continue;
+    return { title: titlePart, volumeLabel: normalized.label, volumeNumber: normalized.number };
+  }
+  return null;
+}
+
+export function bookSeriesInfo(book: BookDto): BookSeriesInfo | null {
+  const extended = book as ExtendedBookDto;
+  const seriesObjectTitle =
+    extended.series && typeof extended.series === "object" && hasValue(extended.series.title) ? extended.series.title : null;
+  const series = [seriesObjectTitle, extended.series, extended.seriesTitle, extended.collection].find(hasValue);
+  if (series) {
+    const explicitLabel = normalizeVolumeLabel(extended.volumeLabel);
+    const issue = normalizeVolumeLabel([extended.issueNumber, extended.issue, extended.seriesNumber].find(hasValue), "issue");
+    const volume = normalizeVolumeLabel([extended.volumeNumber, extended.volume, extended.seriesIndex].find(hasValue), "volume");
+    const position = explicitLabel ?? issue ?? volume;
+    return {
+      title: String(series),
+      volumeLabel: position?.label ?? null,
+      volumeNumber: position?.number ?? null
+    };
+  }
+  return titleVolumeInfo(book.title);
+}
+
+export function bookDisplayTitle(book: BookDto): string {
+  return bookSeriesInfo(book)?.title ?? book.title;
+}
+
+export function bookVolumeLabel(book: BookDto): string | null {
+  return bookSeriesInfo(book)?.volumeLabel ?? null;
+}
+
+export function bookCardVolumeLabel(book: BookDto): string | null {
+  const series = bookSeriesInfo(book);
+  if (!series?.volumeNumber) return null;
+  if (!series.volumeLabel) return null;
+  if (series.volumeLabel.startsWith("#")) return series.volumeLabel;
+  return `T. ${series.volumeNumber}`;
+}
+
+export function displayPublishedDate(value?: string | null): string | null {
+  if (!value) return null;
+  const trimmed = value.trim();
+  if (!trimmed) return null;
+  const yearMatch = trimmed.match(/\b(\d{4})\b/);
+  if (!yearMatch) return null;
+  const year = Number(yearMatch[1]);
+  const nextYear = new Date().getFullYear() + 1;
+  if (!Number.isInteger(year) || year < earliestCrediblePublishedYear || year > nextYear) return null;
+  return String(year);
+}
+
+export function usefulMetadataCount(book: BookDto): number {
+  return [
+    book.author,
+    displayPublishedDate(book.publishedDate),
+    book.publisher,
+    book.description,
+    book.isbn13,
+    book.isbn,
+    book.coverPath,
+    bookSeriesLabel(book)
+  ].filter(hasValue).length;
+}
+
+export function bookMetadataState(book: BookDto): BookMetadataState {
+  const statuses = book as ExtendedBookDto;
+  if (statuses.enrichmentStatus === "succeeded") return "enriched";
+  if (usefulMetadataCount(book) > 0 || statuses.scanStatus === "succeeded") return "partial";
+  return "missing";
+}
+
+export function bookMetadataStateLabel(book: BookDto): string {
+  const state = bookMetadataState(book);
+  if (state === "enriched") return "enrichi";
+  if (state === "partial") return "partiel";
+  return "non enrichi";
+}
+
+export function bookMetadataSourceSummary(book: BookDto): string {
+  const statuses = book as ExtendedBookDto;
+  if (statuses.enrichmentStatus === "running" || statuses.scanStatus === "running") return "mise a jour en cours";
+  if (statuses.enrichmentStatus === "succeeded") return "source locale + enrichissement externe";
+  if (usefulMetadataCount(book) > 0 || statuses.scanStatus === "succeeded") return "source locale uniquement";
+  return "metadata indisponible";
+}
+
+export function jobDigestSummary(job: JobDto): string {
+  const detail = job.detail?.trim();
+  if (detail) return detail;
+  if (job.type.toLowerCase().includes("enrich")) return "enrichissement externe";
+  if (job.type.toLowerCase().includes("scan")) return "source locale";
+  return "travail catalogue";
+}

apps/web/src/components/BookCard.tsx

@@ -1,22 +1,35 @@
 import { BookOpen, Eye } from "lucide-react";
 import type { BookDto } from "@readabook/shared";
 import { api } from "../api/client";
+import { bookCardVolumeLabel, bookDisplayTitle, bookMetadataState, bookMetadataStateLabel, displayPublishedDate } from "../book/metadata";
 import { navigate } from "../router";
 import { FormatPill } from "./ui";
 
-export function BookCard({ book, compact = false }: { book: BookDto; compact?: boolean }) {
+export function BookCard({ book, compact = false, coverLoading = false }: { book: BookDto; compact?: boolean; coverLoading?: boolean }) {
+  const metadataState = bookMetadataState(book);
+  const publishedDate = displayPublishedDate(book.publishedDate);
+  const volumeLabel = bookCardVolumeLabel(book);
+
   return (
     <article className={`book-card ${compact ? "book-card-compact" : ""}`}>
       <button className="cover-button" onClick={() => navigate(`/book/${book.id}`)} aria-label={`Ouvrir ${book.title}`}>
         {book.coverPath ? <img src={api.bookCoverUrl(book.id)} alt="" /> : <BookOpen size={34} />}
+        {coverLoading && <span className="cover-loading" aria-label="Jaquette en cours de mise à jour" />}
       </button>
       <div className="book-card-body">
         <div className="book-card-meta">
           <FormatPill format={book.format} />
-          <span>{book.language ?? "langue inconnue"}</span>
+          {volumeLabel && <span className="volume-pill">{volumeLabel}</span>}
+          <span className="book-card-language">{book.language ?? "langue inconnue"}</span>
         </div>
-        <h3>{book.title}</h3>
+        <h3>{bookDisplayTitle(book)}</h3>
         <p>{book.author ?? "Auteur inconnu"}</p>
+        {(volumeLabel || publishedDate) && (
+          <p className="book-card-submeta">
+            {[volumeLabel, publishedDate].filter(Boolean).join(" · ")}
+          </p>
+        )}
+        <span className={`metadata-pill metadata-${metadataState}`}>{bookMetadataStateLabel(book)}</span>
         {!compact && <p className="book-card-description">{book.description ?? "Notice absente du catalogue."}</p>}
         <div className="book-card-actions">
           <button className="ghost-button" onClick={() => navigate(`/book/${book.id}`)}>

apps/web/src/components/ui.tsx

@@ -28,7 +28,7 @@ export function ErrorRibbon({ message }: { message?: string }) {
   return <div className="error-ribbon">{message}</div>;
 }
 
-export function FormatPill({ format }: { format: "epub" | "pdf" }) {
+export function FormatPill({ format }: { format: "epub" | "pdf" | "cbz" | "cbr" }) {
   return <span className={`format-pill format-${format}`}>{format.toUpperCase()}</span>;
 }
 

apps/web/src/layout/AppShell.tsx

@@ -1,4 +1,4 @@
-import { Archive, Home, Search, Settings, UserRound } from "lucide-react";
+import { Archive, Home, Search, Settings, SlidersHorizontal, UserRound } from "lucide-react";
 import type { ReactNode } from "react";
 import type { Session } from "../api/types";
 import { navigate } from "../router";
@@ -7,10 +7,11 @@ const navItems = [
   { href: "/home", label: "Accueil", icon: Home },
   { href: "/search", label: "Recherche", icon: Search },
   { href: "/admin/libraries", label: "Admin", icon: Settings },
+  { href: "/admin/automation", label: "Automatisation", icon: SlidersHorizontal },
   { href: "/me", label: "Profil", icon: UserRound }
 ];
 
-export function AppShell({ children, session }: { children: ReactNode; session: Session }) {
+export function AppShell({ children, session, readerLayout = false }: { children: ReactNode; session: Session; readerLayout?: boolean }) {
   return (
     <div className="app-shell">
       <aside className="side-rail">
@@ -31,7 +32,7 @@ export function AppShell({ children, session }: { children: ReactNode; session:
         </nav>
         <div className="session-chip">{session.user ? session.user.email : "Mode vitrine"}</div>
       </aside>
-      <main>{children}</main>
+      <main className={readerLayout ? "app-main-reader" : undefined}>{children}</main>
     </div>
   );
 }

apps/web/src/pages/AdminAutomationPage.tsx

@@ -0,0 +1,517 @@
+import { FormEvent, useEffect, useMemo, useState } from "react";
+import { ArrowDown, ArrowUp, Play, Save } from "lucide-react";
+import type {
+  AutomationFrequency,
+  AutomationScheduleDto,
+  AutomationSettingsDto,
+  MetadataSourcesConfigDto
+} from "@readabook/shared";
+import { api, getApiFallback } from "../api/client";
+import { ErrorRibbon, LoadingState, Panel } from "../components/ui";
+import {
+  type AdminMetadataProviderId,
+  type AdminMetadataSourcesConfig,
+  defaultMetadataSources,
+  metadataSourcesPayload,
+  moveSource,
+  normalizeMetadataSources,
+  providerLabels,
+  providerUiMessage,
+  providerUiState,
+  providerUiStateLabel,
+  scheduleDays,
+  scheduleSummary
+} from "./adminAutomation";
+
+type AdminAutomationTab = "sources" | "automation";
+type ApiState<T> = {
+  initial: T | null;
+  draft: T | null;
+  loading: boolean;
+  saving: boolean;
+  error?: string;
+  success?: string;
+};
+
+const defaultMetadataConfig: AdminMetadataSourcesConfig = {
+  isbnPriorityEnabled: true,
+  sources: defaultMetadataSources
+};
+
+const defaultAutomationSettings: AutomationSettingsDto = {
+  watchLibraries: false,
+  autoEnrichNewBooks: false,
+  scanSchedule: { frequency: "disabled", time: "03:00", dayOfWeek: 1 },
+  enrichSchedule: { frequency: "disabled", time: "04:00", dayOfWeek: 1 }
+};
+
+export function AdminAutomationPage() {
+  const [tab, setTab] = useState<AdminAutomationTab>("sources");
+  const [metadataState, setMetadataState] = useState<ApiState<AdminMetadataSourcesConfig>>({
+    initial: null,
+    draft: null,
+    loading: true,
+    saving: false
+  });
+  const [automationState, setAutomationState] = useState<ApiState<AutomationSettingsDto>>({
+    initial: null,
+    draft: null,
+    loading: true,
+    saving: false
+  });
+  const [apiKeys, setApiKeys] = useState<Partial<Record<AdminMetadataProviderId, string>>>({});
+
+  const metadataDirty = useMemo(
+    () => Boolean(metadataState.initial && metadataState.draft && JSON.stringify(metadataState.initial) !== JSON.stringify(metadataState.draft)),
+    [metadataState.initial, metadataState.draft]
+  );
+  const automationDirty = useMemo(
+    () =>
+      Boolean(automationState.initial && automationState.draft && JSON.stringify(automationState.initial) !== JSON.stringify(automationState.draft)),
+    [automationState.initial, automationState.draft]
+  );
+
+  async function refreshMetadata() {
+    setMetadataState((current) => ({ ...current, loading: true, error: undefined, success: undefined }));
+    try {
+      const next = normalizeMetadataSources(await api.metadataSources());
+      setMetadataState({ initial: next, draft: next, loading: false, saving: false });
+      setApiKeys({});
+    } catch (error) {
+      const fallback = getApiFallback<MetadataSourcesConfigDto | AdminMetadataSourcesConfig>(error);
+      const next = normalizeMetadataSources(fallback ?? defaultMetadataConfig);
+      setMetadataState({
+        initial: next,
+        draft: next,
+        loading: false,
+        saving: false,
+        error: fallback ? "Sources chargees en mode degrade." : "Lecture des sources impossible."
+      });
+    }
+  }
+
+  async function refreshAutomation() {
+    setAutomationState((current) => ({ ...current, loading: true, error: undefined, success: undefined }));
+    try {
+      const next = await api.automationSettings();
+      setAutomationState({ initial: next, draft: next, loading: false, saving: false });
+    } catch (error) {
+      const fallback = getApiFallback<AutomationSettingsDto>(error);
+      const next = fallback ?? defaultAutomationSettings;
+      setAutomationState({
+        initial: next,
+        draft: next,
+        loading: false,
+        saving: false,
+        error: fallback ? "Automatisation chargee en mode degrade." : "Lecture de l'automatisation impossible."
+      });
+    }
+  }
+
+  useEffect(() => {
+    void refreshMetadata();
+    void refreshAutomation();
+  }, []);
+
+  async function saveMetadata(event: FormEvent) {
+    event.preventDefault();
+    if (!metadataState.draft) return;
+    setMetadataState((current) => ({ ...current, saving: true, error: undefined, success: undefined }));
+    try {
+      const payload = metadataSourcesPayload(metadataState.draft);
+      payload.sources = payload.sources?.map((source) => {
+        const apiKey = apiKeys[source.provider]?.trim();
+        return apiKey ? { ...source, apiKey } : source;
+      });
+      const next = normalizeMetadataSources(await api.updateMetadataSources(payload));
+      setMetadataState({ initial: next, draft: next, loading: false, saving: false, success: "Sources enregistrees." });
+      setApiKeys({});
+    } catch (error) {
+      setMetadataState((current) => ({
+        ...current,
+        saving: false,
+        error: error instanceof Error ? error.message : "Enregistrement des sources impossible."
+      }));
+    }
+  }
+
+  async function saveAutomation(event: FormEvent) {
+    event.preventDefault();
+    if (!automationState.draft) return;
+    setAutomationState((current) => ({ ...current, saving: true, error: undefined, success: undefined }));
+    try {
+      const next = await api.updateAutomationSettings(automationState.draft);
+      setAutomationState({ initial: next, draft: next, loading: false, saving: false, success: "Automatisation enregistree." });
+    } catch (error) {
+      setAutomationState((current) => ({
+        ...current,
+        saving: false,
+        error: error instanceof Error ? error.message : "Enregistrement de l'automatisation impossible."
+      }));
+    }
+  }
+
+  async function runNow(kind: "scan" | "enrich") {
+    setAutomationState((current) => ({ ...current, error: undefined, success: undefined }));
+    try {
+      if (kind === "scan") await api.runAutomationScan();
+      else await api.runAutomationEnrich();
+      setAutomationState((current) => ({
+        ...current,
+        success: kind === "scan" ? "Scan planifie demande." : "Enrichissement planifie demande."
+      }));
+    } catch (error) {
+      setAutomationState((current) => ({
+        ...current,
+        error: error instanceof Error ? error.message : "Demande impossible."
+      }));
+    }
+  }
+
+  return (
+    <div className="page-grid">
+      <Panel className="span-3">
+        <div className="section-heading">
+          <div>
+            <h1>Automatisation & enrichissement</h1>
+            <p className="muted-copy">Sources, priorites et taches recurrentes.</p>
+          </div>
+          <span>{metadataDirty || automationDirty ? "modifications non enregistrees" : "a jour"}</span>
+        </div>
+        <div className="admin-tabs" role="tablist" aria-label="Automatisation admin">
+          <button className={tab === "sources" ? "active" : ""} onClick={() => setTab("sources")} role="tab" aria-selected={tab === "sources"}>
+            Sources de métadonnées
+          </button>
+          <button
+            className={tab === "automation" ? "active" : ""}
+            onClick={() => setTab("automation")}
+            role="tab"
+            aria-selected={tab === "automation"}
+          >
+            Automatisation
+          </button>
+        </div>
+      </Panel>
+
+      {tab === "sources" ? (
+        <MetadataSourcesPanel
+          state={metadataState}
+          dirty={metadataDirty}
+          apiKeys={apiKeys}
+          setApiKeys={setApiKeys}
+          onChange={(draft) => setMetadataState((current) => ({ ...current, draft, success: undefined }))}
+          onSubmit={saveMetadata}
+          onRefresh={refreshMetadata}
+        />
+      ) : (
+        <AutomationPanel
+          state={automationState}
+          dirty={automationDirty}
+          onChange={(draft) => setAutomationState((current) => ({ ...current, draft, success: undefined }))}
+          onSubmit={saveAutomation}
+          onRefresh={refreshAutomation}
+          onRunNow={runNow}
+        />
+      )}
+    </div>
+  );
+}
+
+function MetadataSourcesPanel({
+  state,
+  dirty,
+  apiKeys,
+  setApiKeys,
+  onChange,
+  onSubmit,
+  onRefresh
+}: {
+  state: ApiState<AdminMetadataSourcesConfig>;
+  dirty: boolean;
+  apiKeys: Partial<Record<AdminMetadataProviderId, string>>;
+  setApiKeys: (next: Partial<Record<AdminMetadataProviderId, string>>) => void;
+  onChange: (draft: AdminMetadataSourcesConfig) => void;
+  onSubmit: (event: FormEvent) => void;
+  onRefresh: () => Promise<void>;
+}) {
+  const draft = state.draft;
+  if (state.loading && !draft) return <LoadingPanel label="Lecture des sources" />;
+  if (!draft) return null;
+
+  const local = draft.sources.find((source) => source.provider === "local");
+  const external = draft.sources.filter((source) => source.provider !== "local");
+
+  return (
+    <form className="span-3 automation-grid" onSubmit={onSubmit}>
+      <Panel className="span-3">
+        <div className="section-heading compact-heading">
+          <div>
+            <h2>Sources de métadonnées</h2>
+            <p className="muted-copy">La source locale reste active en premier passage.</p>
+          </div>
+          <StatusText dirty={dirty} loading={state.loading} />
+        </div>
+        <ErrorRibbon message={state.error} />
+        {state.success && <div className="success-ribbon">{state.success}</div>}
+        <label className="toggle-row">
+          <input
+            type="checkbox"
+            checked={draft.isbnPriorityEnabled}
+            onChange={(event) => onChange({ ...draft, isbnPriorityEnabled: event.target.checked })}
+          />
+          <span>
+            <strong>Priorite ISBN globale</strong>
+            <small>Les correspondances ISBN passent avant les rapprochements titre/auteur.</small>
+          </span>
+        </label>
+      </Panel>
+
+      <Panel className="span-3">
+        <div className="provider-list">
+          {local && (
+            <div className="provider-row provider-local">
+              <div>
+                <strong>{providerLabels.local}</strong>
+                <span>Source locale</span>
+              </div>
+              <span className="status-pill active">toujours active</span>
+            </div>
+          )}
+          {external.map((source, index) => (
+            <div className="provider-row" key={source.provider}>
+              <label className="toggle-row">
+                <input
+                  type="checkbox"
+                  checked={source.enabled}
+                  onChange={(event) =>
+                    onChange({
+                      ...draft,
+                      sources: draft.sources.map((item) =>
+                        item.provider === source.provider ? { ...item, enabled: event.target.checked } : item
+                      )
+                    })
+                  }
+                />
+                <span>
+                  <strong>{providerLabels[source.provider]}</strong>
+                  <small>{source.enabled ? "active" : "inactive"}</small>
+                </span>
+              </label>
+              <div className="provider-config">
+                <div className="provider-state-line">
+                  <span className={`status-pill provider-state-${providerUiState(source)}`}>{providerUiStateLabel(source)}</span>
+                  <small>{providerUiMessage(source)}</small>
+                </div>
+                {source.provider === "comicvine" && (
+                  <p className="provider-warning">
+                    Usage non commercial uniquement. Verifier la compatibilite avec l'usage de ReadaBook.
+                  </p>
+                )}
+                <label>
+                  Cle API
+                  <input
+                    value={apiKeys[source.provider] ?? ""}
+                    onChange={(event) => setApiKeys({ ...apiKeys, [source.provider]: event.target.value })}
+                    placeholder={source.hasApiKey ? "cle conservee" : source.requiresCredentials ? "requise" : "optionnelle"}
+                  />
+                </label>
+              </div>
+              <div className="provider-actions">
+                <button
+                  className="ghost-button icon-button"
+                  type="button"
+                  title="Monter"
+                  disabled={index === 0}
+                  onClick={() => onChange({ ...draft, sources: moveSource(draft.sources, source.provider, -1) })}
+                >
+                  <ArrowUp size={16} />
+                </button>
+                <button
+                  className="ghost-button icon-button"
+                  type="button"
+                  title="Descendre"
+                  disabled={index === external.length - 1}
+                  onClick={() => onChange({ ...draft, sources: moveSource(draft.sources, source.provider, 1) })}
+                >
+                  <ArrowDown size={16} />
+                </button>
+              </div>
+            </div>
+          ))}
+        </div>
+      </Panel>
+
+      <SaveBar dirty={dirty} saving={state.saving} onRefresh={onRefresh} />
+    </form>
+  );
+}
+
+function AutomationPanel({
+  state,
+  dirty,
+  onChange,
+  onSubmit,
+  onRefresh,
+  onRunNow
+}: {
+  state: ApiState<AutomationSettingsDto>;
+  dirty: boolean;
+  onChange: (draft: AutomationSettingsDto) => void;
+  onSubmit: (event: FormEvent) => void;
+  onRefresh: () => Promise<void>;
+  onRunNow: (kind: "scan" | "enrich") => Promise<void>;
+}) {
+  const draft = state.draft;
+  if (state.loading && !draft) return <LoadingPanel label="Lecture de l'automatisation" />;
+  if (!draft) return null;
+
+  return (
+    <form className="span-3 automation-grid" onSubmit={onSubmit}>
+      <Panel className="span-3">
+        <div className="section-heading compact-heading">
+          <div>
+            <h2>Automatisation</h2>
+            <p className="muted-copy">Surveillance des dossiers et traitements planifies.</p>
+          </div>
+          <StatusText dirty={dirty} loading={state.loading} />
+        </div>
+        <ErrorRibbon message={state.error} />
+        {state.success && <div className="success-ribbon">{state.success}</div>}
+        <div className="toggle-stack">
+          <label className="toggle-row">
+            <input
+              type="checkbox"
+              checked={draft.watchLibraries}
+              onChange={(event) => onChange({ ...draft, watchLibraries: event.target.checked })}
+            />
+            <span>
+              <strong>Watch auto</strong>
+              <small>Les bibliotheques actives declenchent un scan quand un fichier change.</small>
+            </span>
+          </label>
+          <label className="toggle-row">
+            <input
+              type="checkbox"
+              checked={draft.autoEnrichNewBooks}
+              onChange={(event) => onChange({ ...draft, autoEnrichNewBooks: event.target.checked })}
+            />
+            <span>
+              <strong>Auto enrich new files</strong>
+              <small>Les nouveaux livres passent par la chaine d'enrichissement active.</small>
+            </span>
+          </label>
+        </div>
+      </Panel>
+
+      <SchedulePanel
+        title="Scan planifié"
+        schedule={draft.scanSchedule}
+        summary={scheduleSummary(draft.scanSchedule, "Scan")}
+        runLabel="Lancer un scan"
+        onRun={() => onRunNow("scan")}
+        onChange={(scanSchedule) => onChange({ ...draft, scanSchedule })}
+      />
+      <SchedulePanel
+        title="Enrichissement planifié"
+        schedule={draft.enrichSchedule}
+        summary={scheduleSummary(draft.enrichSchedule, "Enrichissement")}
+        runLabel="Lancer l'enrichissement"
+        onRun={() => onRunNow("enrich")}
+        onChange={(enrichSchedule) => onChange({ ...draft, enrichSchedule })}
+      />
+
+      <SaveBar dirty={dirty} saving={state.saving} onRefresh={onRefresh} />
+    </form>
+  );
+}
+
+function SchedulePanel({
+  title,
+  schedule,
+  summary,
+  runLabel,
+  onRun,
+  onChange
+}: {
+  title: string;
+  schedule: AutomationScheduleDto;
+  summary: string;
+  runLabel: string;
+  onRun: () => Promise<void>;
+  onChange: (schedule: AutomationScheduleDto) => void;
+}) {
+  function patch(next: Partial<AutomationScheduleDto>) {
+    onChange({ ...schedule, ...next });
+  }
+
+  return (
+    <Panel>
+      <div className="section-heading compact-heading">
+        <div>
+          <h2>{title}</h2>
+          <p className="muted-copy">{summary}</p>
+        </div>
+        <button className="ghost-button icon-text-button" type="button" onClick={() => void onRun()}>
+          <Play size={16} />
+          {runLabel}
+        </button>
+      </div>
+      <div className="schedule-controls">
+        <label>
+          Frequence
+          <select value={schedule.frequency} onChange={(event) => patch({ frequency: event.target.value as AutomationFrequency })}>
+            <option value="disabled">Desactive</option>
+            <option value="daily">Daily</option>
+            <option value="weekly">Weekly</option>
+          </select>
+        </label>
+        <label>
+          Heure
+          <input type="time" value={schedule.time} onChange={(event) => patch({ time: event.target.value })} />
+        </label>
+        {schedule.frequency === "weekly" && (
+          <label>
+            Jour
+            <select value={schedule.dayOfWeek} onChange={(event) => patch({ dayOfWeek: Number(event.target.value) })}>
+              {scheduleDays.map((day) => (
+                <option value={day.value} key={day.value}>
+                  {day.label}
+                </option>
+              ))}
+            </select>
+          </label>
+        )}
+      </div>
+    </Panel>
+  );
+}
+
+function SaveBar({ dirty, saving, onRefresh }: { dirty: boolean; saving: boolean; onRefresh: () => Promise<void> }) {
+  return (
+    <Panel className="span-3 save-bar">
+      <span>{dirty ? "Modifications en attente." : "Aucune modification en attente."}</span>
+      <div>
+        <button className="ghost-button" type="button" onClick={() => void onRefresh()} disabled={saving}>
+          Recharger
+        </button>
+        <button className="primary-button" type="submit" disabled={!dirty || saving}>
+          <Save size={16} />
+          {saving ? "Enregistrement" : "Enregistrer"}
+        </button>
+      </div>
+    </Panel>
+  );
+}
+
+function StatusText({ dirty, loading }: { dirty: boolean; loading: boolean }) {
+  if (loading) return <span>chargement</span>;
+  return <span>{dirty ? "non enregistre" : "synchronise"}</span>;
+}
+
+function LoadingPanel({ label }: { label: string }) {
+  return (
+    <Panel className="span-3">
+      <LoadingState label={label} />
+    </Panel>
+  );
+}

apps/web/src/pages/AdminPage.tsx

@@ -1,67 +1,152 @@
 import { FormEvent, useEffect, useState } from "react";
-import { Play, Plus } from "lucide-react";
+import { Play, Plus, Trash2 } from "lucide-react";
 import type { JobDto, LibraryDto, UserDto } from "@readabook/shared";
-import { api } from "../api/client";
-import { ErrorRibbon, LoadingState, Panel } from "../components/ui";
+import { api, getApiFallback } from "../api/client";
+import { jobDigestSummary } from "../book/metadata";
+import { EmptyState, ErrorRibbon, LoadingState, Panel } from "../components/ui";
+
+function formatJobTime(value: string) {
+  return new Intl.DateTimeFormat(undefined, { hour: "2-digit", minute: "2-digit" }).format(new Date(value));
+}
 
 export function AdminPage() {
-  const [libraries, setLibraries] = useState<LibraryDto[] | null>(null);
+  const [libraries, setLibraries] = useState<LibraryDto[]>([]);
   const [jobs, setJobs] = useState<JobDto[]>([]);
   const [users, setUsers] = useState<UserDto[]>([]);
+  const [loading, setLoading] = useState(true);
   const [name, setName] = useState("Bibliotheque locale");
   const [path, setPath] = useState("/library");
   const [error, setError] = useState<string>();
+  const [success, setSuccess] = useState<string>();
+  const [scanRetryLibrary, setScanRetryLibrary] = useState<LibraryDto>();
 
   async function refresh() {
-    const [nextLibraries, nextJobs, nextUsers] = await Promise.all([api.libraries(), api.jobs(), api.users()]);
-    setLibraries(nextLibraries);
-    setJobs(nextJobs);
-    setUsers(nextUsers);
+    setLoading(true);
+    setError(undefined);
+    const [libraryResult, jobResult, userResult] = await Promise.allSettled([api.libraries(), api.jobs(), api.users()]);
+    const errors: string[] = [];
+
+    if (libraryResult.status === "fulfilled") {
+      setLibraries(libraryResult.value);
+    } else {
+      setLibraries(getApiFallback<LibraryDto[]>(libraryResult.reason) ?? []);
+      errors.push("bibliotheques");
+    }
+
+    if (jobResult.status === "fulfilled") {
+      setJobs(jobResult.value);
+    } else {
+      setJobs(getApiFallback<JobDto[]>(jobResult.reason) ?? []);
+      errors.push("travaux");
+    }
+
+    if (userResult.status === "fulfilled") {
+      setUsers(userResult.value);
+    } else {
+      setUsers(getApiFallback<UserDto[]>(userResult.reason) ?? []);
+      errors.push("comptes");
+    }
+
+    setError(errors.length ? `Donnees admin degradees : ${errors.join(", ")}.` : undefined);
+    setLoading(false);
   }
 
   useEffect(() => {
-    refresh().catch((refreshError) => setError(refreshError instanceof Error ? refreshError.message : "Administration indisponible"));
+    void refresh();
   }, []);
 
   async function createLibrary(event: FormEvent) {
     event.preventDefault();
     setError(undefined);
+    setSuccess(undefined);
+    setScanRetryLibrary(undefined);
     try {
-      await api.createLibrary({ name, path, enabled: true });
+      const created = await api.createLibrary({ name, path, enabled: true });
       await refresh();
+      setName("Bibliotheque locale");
+      setPath("/library");
+      try {
+        await api.scanLibrary(created.id);
+        await refresh();
+        setSuccess(`Bibliothèque "${created.name}" ajoutée. Scan initial demandé.`);
+      } catch (scanError) {
+        setScanRetryLibrary(created);
+        setSuccess(
+          `Bibliothèque "${created.name}" ajoutée, mais le scan initial n'a pas pu être demandé. Tu peux réessayer le scan.`
+        );
+        setError(scanError instanceof Error ? `Scan initial impossible : ${scanError.message}` : "Scan initial impossible.");
+      }
     } catch (createError) {
-      setError(createError instanceof Error ? createError.message : "Creation impossible");
+      setError(createError instanceof Error ? `Création impossible : ${createError.message}` : "Création impossible.");
     }
   }
 
   async function scan(id: number) {
     setError(undefined);
+    setSuccess(undefined);
+    setScanRetryLibrary(undefined);
     try {
       await api.scanLibrary(id);
       await refresh();
+      setSuccess("Scan demandé.");
     } catch (scanError) {
-      setError(scanError instanceof Error ? scanError.message : "Scan impossible");
+      setError(scanError instanceof Error ? `Scan impossible : ${scanError.message}` : "Scan impossible.");
     }
   }
 
-  if (!libraries) return <LoadingState />;
+  async function deleteLibrary(library: LibraryDto) {
+    const confirmed = window.confirm(
+      `Supprimer la bibliothèque "${library.name}" ?\n\nLes livres restent sur le disque. ReadaBook supprimera seulement cette bibliothèque du catalogue.`
+    );
+    if (!confirmed) return;
+
+    setError(undefined);
+    setSuccess(undefined);
+    setScanRetryLibrary(undefined);
+    try {
+      await api.deleteLibrary(library.id);
+      setLibraries((current) => current.filter((item) => item.id !== library.id));
+      setSuccess(`Bibliothèque "${library.name}" supprimée. Les fichiers disque n'ont pas été supprimés.`);
+    } catch (deleteError) {
+      setError(deleteError instanceof Error ? deleteError.message : "Suppression impossible");
+    }
+  }
 
   return (
     <div className="page-grid">
       <Panel className="span-2">
         <div className="section-heading">
           <h1>Administration</h1>
-          <span>{users.length} comptes</span>
+          <span>{loading ? "chargement" : `${users.length} comptes`}</span>
         </div>
         <ErrorRibbon message={error} />
+        {success && <div className="success-ribbon">{success}</div>}
+        {scanRetryLibrary ? (
+          <div className="retry-row">
+            <span>La bibliothèque est conservée dans la liste.</span>
+            <button className="ghost-button" onClick={() => scan(scanRetryLibrary.id)}>
+              <Play size={16} />
+              Réessayer le scan
+            </button>
+          </div>
+        ) : error ? (
+          <div className="retry-row">
+            <span>Les formulaires restent disponibles.</span>
+            <button className="ghost-button" onClick={() => void refresh()}>
+              Reessayer
+            </button>
+          </div>
+        ) : null}
         <form className="admin-form" onSubmit={createLibrary}>
           <label>
-            Nom du rayon
+            Nom de la bibliothèque
             <input value={name} onChange={(event) => setName(event.target.value)} required />
+            <small>Nom affiché dans l’application, par exemple : Romans, BD, Documentation.</small>
           </label>
           <label>
-            Chemin serveur
+            Chemin du dossier
             <input value={path} onChange={(event) => setPath(event.target.value)} required />
+            <small>Emplacement réel sur le serveur où ReadaBook lit les livres.</small>
           </label>
           <button className="primary-button" type="submit">
             <Plus size={17} />
@@ -75,32 +160,54 @@ export function AdminPage() {
           <h2>Travaux</h2>
           <span>{jobs.length}</span>
         </div>
-        <div className="job-list">
-          {jobs.map((job) => (
-            <div key={job.id}>
-              <strong>{job.type}</strong>
-              <span>{job.status}</span>
-            </div>
-          ))}
-        </div>
+        {loading && !jobs.length ? (
+          <LoadingState label="Lecture des travaux" />
+        ) : jobs.length ? (
+          <div className="job-list">
+            {jobs.map((job) => (
+              <div key={job.id}>
+                <div className="job-copy">
+                  <div>
+                    <strong>{job.type}</strong>
+                    <small>{jobDigestSummary(job)}</small>
+                  </div>
+                  <time dateTime={job.updatedAt}>{formatJobTime(job.updatedAt)}</time>
+                </div>
+                <span>{job.status}</span>
+              </div>
+            ))}
+          </div>
+        ) : (
+          <EmptyState title="Aucun travail" detail="Les scans apparaitront ici." />
+        )}
       </Panel>
 
       <Panel className="span-3">
-        <div className="library-table">
-          {libraries.map((library) => (
-            <div key={library.id}>
-              <div>
-                <strong>{library.name}</strong>
-                <span>{library.path}</span>
+        {loading && !libraries.length ? (
+          <LoadingState label="Lecture des rayons" />
+        ) : libraries.length ? (
+          <div className="library-table">
+            {libraries.map((library) => (
+              <div key={library.id}>
+                <div className="library-copy">
+                  <strong>{library.name}</strong>
+                  <span>Chemin : {library.path}</span>
+                </div>
+                <span>{library.enabled ? "actif" : "pause"}</span>
+                <button className="ghost-button" onClick={() => scan(library.id)}>
+                  <Play size={16} />
+                  Scanner
+                </button>
+                <button className="ghost-button danger-button" onClick={() => void deleteLibrary(library)}>
+                  <Trash2 size={16} />
+                  Supprimer
+                </button>
               </div>
-              <span>{library.enabled ? "actif" : "pause"}</span>
-              <button className="ghost-button" onClick={() => scan(library.id)}>
-                <Play size={16} />
-                Scanner
-              </button>
-            </div>
-          ))}
-        </div>
+            ))}
+          </div>
+        ) : (
+          <EmptyState title="Aucun rayon" detail="Ajoute un chemin puis relance la synchronisation." />
+        )}
       </Panel>
     </div>
   );

apps/web/src/pages/BookErrorPages.test.ts

@@ -0,0 +1,23 @@
+import { readFileSync } from "node:fs";
+import { describe, expect, it } from "vitest";
+
+describe("book missing error pages", () => {
+  it("does not render fallback books on the book detail page", () => {
+    const source = readFileSync(new URL("./BookPage.tsx", import.meta.url), "utf8");
+
+    expect(source).not.toContain("getApiFallback");
+    expect(source).toContain("setBook(null)");
+    expect(source).toContain("Livre introuvable");
+    expect(source).toContain("Ce livre n'existe pas dans le catalogue.");
+  });
+
+  it("does not open the reader with a fallback book", () => {
+    const source = readFileSync(new URL("./ReaderPage.tsx", import.meta.url), "utf8");
+
+    expect(source).not.toContain("getApiFallback");
+    expect(source).toContain("setBook(null)");
+    expect(source).toContain("reader-missing-page");
+    expect(source).toContain("Livre introuvable");
+    expect(source).toContain("Ce livre n'existe pas dans le catalogue.");
+  });
+});

apps/web/src/pages/BookPage.tsx

@@ -1,27 +1,79 @@
 import { useEffect, useState } from "react";
-import { BookOpen, LibraryBig } from "lucide-react";
+import { BookOpen, LibraryBig, RotateCcw } from "lucide-react";
 import type { BookDto, ProgressDto } from "@readabook/shared";
 import { api } from "../api/client";
-import { FormatPill, LoadingState, Meter, Panel } from "../components/ui";
+import { cleanBookDescription } from "../book/description";
+import { bookDisplayTitle, bookMetadataState, bookMetadataStateLabel, bookSeriesInfo, displayPublishedDate } from "../book/metadata";
+import { EmptyState, ErrorRibbon, FormatPill, LoadingState, Meter, Panel } from "../components/ui";
 import { navigate } from "../router";
 
 export function BookPage({ bookId }: { bookId: number }) {
   const [book, setBook] = useState<BookDto | null>(null);
   const [progress, setProgress] = useState<ProgressDto | null>(null);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState<string>();
+
+  async function loadBook() {
+    setLoading(true);
+    setError(undefined);
+    try {
+      const nextBook = await api.book(bookId);
+      setBook(nextBook);
+      try {
+        setProgress(await api.progress(bookId));
+      } catch {
+        setProgress(null);
+      }
+    } catch {
+      setBook(null);
+      setProgress(null);
+      setError("Ce livre n'existe pas dans le catalogue.");
+    } finally {
+      setLoading(false);
+    }
+  }
 
   useEffect(() => {
     let alive = true;
-    Promise.all([api.book(bookId), api.progress(bookId)]).then(([nextBook, nextProgress]) => {
+    loadBook().finally(() => {
       if (!alive) return;
-      setBook(nextBook);
-      setProgress(nextProgress);
     });
     return () => {
       alive = false;
     };
   }, [bookId]);
 
-  if (!book) return <LoadingState />;
+  if (loading && !book) return <LoadingState />;
+  if (!book) {
+    return (
+      <section className="book-error-page" role="alert">
+        <Panel>
+          <EmptyState title="Livre introuvable" detail={error ?? "Le serveur n'a pas renvoye cet ouvrage."} />
+          <div className="book-card-actions">
+            <button className="ghost-button" onClick={() => navigate("/home")}>
+              Retour à l'accueil
+            </button>
+            <button className="ghost-button" onClick={() => void loadBook()}>
+              <RotateCcw size={17} />
+              Reessayer
+            </button>
+          </div>
+        </Panel>
+      </section>
+    );
+  }
+
+  const series = bookSeriesInfo(book);
+  const metadataState = bookMetadataState(book);
+  const publishedDate = displayPublishedDate(book.publishedDate);
+  const detailFacts = [
+    { label: "Auteur", value: book.author },
+    { label: "Date", value: publishedDate },
+    { label: "Serie", value: series?.title },
+    { label: "Position", value: series?.volumeLabel },
+    { label: "Editeur", value: book.publisher },
+    { label: "ISBN", value: book.isbn13 ?? book.isbn }
+  ].filter((fact) => fact.value);
 
   return (
     <div className="book-detail">
@@ -29,13 +81,23 @@ export function BookPage({ bookId }: { bookId: number }) {
         {book.coverPath ? <img src={api.bookCoverUrl(book.id)} alt="" /> : <BookOpen size={72} />}
       </section>
       <Panel className="book-facts">
+        <ErrorRibbon message={error} />
         <div className="book-card-meta">
           <FormatPill format={book.format} />
           <span>{book.language ?? "langue inconnue"}</span>
+          <span className={`metadata-pill metadata-${metadataState}`}>{bookMetadataStateLabel(book)}</span>
         </div>
-        <h1>{book.title}</h1>
+        <h1>{bookDisplayTitle(book)}</h1>
         <p className="lead">{book.author ?? "Auteur inconnu"}</p>
-        <p>{book.description ?? "Notice absente du catalogue."}</p>
+        <dl className="book-fact-list">
+          {detailFacts.map((fact) => (
+            <div key={fact.label}>
+              <dt>{fact.label}</dt>
+              <dd>{fact.value}</dd>
+            </div>
+          ))}
+        </dl>
+        <p className="book-description">{cleanBookDescription(book.description)}</p>
         {progress && <Meter value={progress.percent} />}
         <div className="book-card-actions">
           <button className="primary-button" onClick={() => navigate(`/reader/${book.id}`)}>
@@ -46,6 +108,18 @@ export function BookPage({ bookId }: { bookId: number }) {
             <LibraryBig size={18} />
             Rayon
           </button>
+          {series && (
+            <button className="ghost-button" onClick={() => navigate(`/catalog/series/${encodeURIComponent(series.title)}`)}>
+              <LibraryBig size={18} />
+              Serie
+            </button>
+          )}
+          {error && (
+            <button className="ghost-button" onClick={() => void loadBook()}>
+              <RotateCcw size={18} />
+              Reessayer
+            </button>
+          )}
         </div>
       </Panel>
     </div>

apps/web/src/pages/HomePage.tsx

@@ -1,21 +1,19 @@
 import { useEffect, useState } from "react";
-import { LibraryBig, ScanLine } from "lucide-react";
+import { BookOpen, LibraryBig, ScanLine } from "lucide-react";
 import { api } from "../api/client";
 import type { DashboardData } from "../api/types";
-import { BookCard } from "../components/BookCard";
+import { bookDisplayTitle, bookVolumeLabel } from "../book/metadata";
 import { EmptyState, LoadingState, Meter, Panel } from "../components/ui";
 import { navigate } from "../router";
 
 export function HomePage() {
   const [state, setState] = useState<DashboardData | null>(null);
-  const [fallback, setFallback] = useState(false);
 
   useEffect(() => {
     let alive = true;
     Promise.all([api.books(), api.continueReading(), api.libraries(), api.jobs()])
       .then(([books, continueReading, libraries, jobs]) => {
         if (!alive) return;
-        setFallback(books.some((book) => book.filePath.startsWith("/library/")) && jobs.length === 1);
         setState({ books, continueReading, libraries, jobs });
       })
       .catch(() => {
@@ -28,13 +26,32 @@ export function HomePage() {
 
   if (!state) return <LoadingState />;
 
+  const renderHomeBook = (
+    item: DashboardData["books"][number],
+    className = "home-book-card",
+    options: { href?: string; progressPercent?: number } = {}
+  ) => {
+    const volumeLabel = bookVolumeLabel(item);
+    return (
+      <button key={item.id} className={className} onClick={() => navigate(options.href ?? `/book/${item.id}`)}>
+        <span className="home-book-cover" aria-hidden="true">
+          {item.coverPath ? <img src={api.bookCoverUrl(item.id)} alt="" /> : <BookOpen size={24} />}
+        </span>
+        <span className="home-book-copy">
+          {volumeLabel && <span className="home-book-volume">{volumeLabel}</span>}
+          <strong>{bookDisplayTitle(item)}</strong>
+          <span>{item.author ?? "Auteur inconnu"}</span>
+          {options.progressPercent !== undefined && <Meter value={options.progressPercent} />}
+        </span>
+      </button>
+    );
+  };
+
   return (
-    <div className="page-grid">
-      <section className="hero-band">
+    <div className="page-grid home-page">
+      <section className="hero-band home-hero">
         <div>
-          <p>Cabinet de curiosites numerique</p>
-          <h1>Ouvrir, classer, reprendre.</h1>
-          <span>{fallback ? "API absente ou incomplete : specimens de demonstration actifs." : "Catalogue branche sur le serveur local."}</span>
+          <h1>Reprendre la lecture.</h1>
         </div>
         <button className="primary-button" onClick={() => navigate("/search")}>
           <ScanLine size={18} />
@@ -44,18 +61,17 @@ export function HomePage() {
 
       <Panel className="span-2">
         <div className="section-heading">
-          <h2>Reprise de lecture</h2>
-          <span>{state.continueReading.length} traces</span>
+          <h2>Livres en cours</h2>
+          <span>{state.continueReading.length} lectures</span>
         </div>
         {state.continueReading.length ? (
           <div className="continue-grid">
-            {state.continueReading.map((item) => (
-              <button key={item.book.id} className="continue-tile" onClick={() => navigate(`/reader/${item.book.id}`)}>
-                <strong>{item.book.title}</strong>
-                <span>{item.book.author ?? "Auteur inconnu"}</span>
-                <Meter value={item.progress.percent} />
-              </button>
-            ))}
+            {state.continueReading.map((item) =>
+              renderHomeBook(item.book, "home-book-card continue-tile", {
+                href: `/reader/${item.book.id}`,
+                progressPercent: item.progress.percent
+              })
+            )}
           </div>
         ) : (
           <EmptyState title="Aucune trace" detail="Les lectures reprises apparaitront ici." />
@@ -77,10 +93,8 @@ export function HomePage() {
         </div>
       </Panel>
 
-      <section className="book-grid span-3">
-        {state.books.map((book) => (
-          <BookCard key={book.id} book={book} />
-        ))}
+      <section className="home-book-grid span-3">
+        {state.books.map((book) => renderHomeBook(book))}
       </section>
     </div>
   );

apps/web/src/pages/HomePageProgressScroll.test.ts

@@ -0,0 +1,62 @@
+import { readFileSync } from "node:fs";
+import { describe, expect, it } from "vitest";
+
+describe("home progress list layout", () => {
+  it("keeps the continue reading list scrollable after three visible books", () => {
+    const styles = readFileSync(new URL("../styles/app.css", import.meta.url), "utf8");
+    const continueTile = styles.match(/\.continue-tile\s*\{[^}]+\}/)?.[0] ?? "";
+
+    expect(styles).toContain(".continue-grid,\n.library-list {\n  --continue-visible-rows: 3;");
+    expect(styles).toContain("--continue-tile-block-size: 112px");
+    expect(styles).toContain("max-height: calc((var(--continue-tile-block-size) * var(--continue-visible-rows)) + (10px * (var(--continue-visible-rows) - 1)))");
+    expect(styles).toContain("overflow-y: auto");
+    expect(styles).toContain("scrollbar-gutter: stable");
+    expect(continueTile).toContain("block-size: var(--continue-tile-block-size)");
+    expect(continueTile).toContain("overflow: hidden");
+  });
+
+  it("keeps home book cards scoped and simplified", () => {
+    const source = readFileSync(new URL("./HomePage.tsx", import.meta.url), "utf8");
+
+    expect(source).toContain("renderHomeBook");
+    expect(source).toContain("home-book-card");
+    expect(source).toContain("progressPercent");
+    expect(source).toContain("<Meter value={options.progressPercent} />");
+    expect(source).toContain("progressPercent: item.progress.percent");
+    expect(source).not.toContain("<BookCard");
+    expect(source).not.toContain("FormatPill");
+    expect(source).not.toContain("bookMetadataState");
+    expect(source).not.toContain("bookMetadataStateLabel");
+    expect(source).not.toContain("displayPublishedDate");
+    expect(source).not.toContain("book.description");
+    expect(source).not.toContain("book.language");
+    expect(source).not.toContain("API absente ou incomplete");
+    expect(source).not.toContain("specimens de demonstration actifs");
+    expect(source).not.toContain("Catalogue branche sur le serveur local");
+    expect(source).not.toContain("Bibliotheque personnelle");
+  });
+
+  it("keeps visible book grids capped to five columns", () => {
+    const styles = readFileSync(new URL("../styles/app.css", import.meta.url), "utf8");
+    const bookGrid = styles.match(/\.book-grid\s*\{[^}]+\}/)?.[0] ?? "";
+    const homeBookGrid = styles.match(/\.home-book-grid\s*\{[^}]+\}/)?.[0] ?? "";
+
+    expect(bookGrid).toContain("grid-template-columns: repeat(auto-fit, minmax(min(100%, max(var(--book-grid-column-min), calc((100% - (var(--book-grid-gap) * 4)) / 5))), 1fr))");
+    expect(homeBookGrid).toContain("grid-template-columns: repeat(auto-fit, minmax(min(100%, max(var(--book-grid-column-min), calc((100% - (var(--book-grid-gap) * 4)) / 5))), 1fr))");
+    expect(bookGrid).toContain("width: 100%");
+    expect(homeBookGrid).toContain("width: 100%");
+    expect(bookGrid).not.toContain("max-width");
+    expect(homeBookGrid).not.toContain("max-width");
+  });
+
+  it("keeps the library list capped like continue reading", () => {
+    const styles = readFileSync(new URL("../styles/app.css", import.meta.url), "utf8");
+    const libraryButton = styles.match(/\.library-list button\s*\{[^}]+\}/)?.[0] ?? "";
+
+    expect(styles).toContain(".continue-grid,\n.library-list {\n  --continue-visible-rows: 3;");
+    expect(styles).toContain("height: calc((var(--continue-tile-block-size) * var(--continue-visible-rows)) + (10px * (var(--continue-visible-rows) - 1)))");
+    expect(styles).toContain("max-height: calc((var(--continue-tile-block-size) * var(--continue-visible-rows)) + (10px * (var(--continue-visible-rows) - 1)))");
+    expect(libraryButton).toContain("block-size: var(--continue-tile-block-size)");
+    expect(libraryButton).toContain("overflow: hidden");
+  });
+});

apps/web/src/pages/LibraryPage.tsx

@@ -1,19 +1,22 @@
 import { useEffect, useState } from "react";
-import type { BookDto, LibraryDto } from "@readabook/shared";
+import type { BookDto, JobDto, LibraryDto } from "@readabook/shared";
 import { api } from "../api/client";
+import { hasActiveCoverWork, isBookCoverUpdating } from "../api/types";
 import { BookCard } from "../components/BookCard";
 import { EmptyState, LoadingState, Panel } from "../components/ui";
 
 export function LibraryPage({ libraryId }: { libraryId: number }) {
   const [books, setBooks] = useState<BookDto[] | null>(null);
   const [libraries, setLibraries] = useState<LibraryDto[]>([]);
+  const [jobs, setJobs] = useState<JobDto[]>([]);
 
   useEffect(() => {
     let alive = true;
-    Promise.all([api.books({ libraryId }), api.libraries()]).then(([nextBooks, nextLibraries]) => {
+    Promise.all([api.books({ libraryId }), api.libraries(), api.jobs().catch(() => [])]).then(([nextBooks, nextLibraries, nextJobs]) => {
       if (!alive) return;
       setBooks(nextBooks);
       setLibraries(nextLibraries);
+      setJobs(nextJobs);
     });
     return () => {
       alive = false;
@@ -22,6 +25,7 @@ export function LibraryPage({ libraryId }: { libraryId: number }) {
 
   if (!books) return <LoadingState />;
   const library = libraries.find((item) => item.id === libraryId);
+  const fallbackCoverLoading = hasActiveCoverWork(jobs);
 
   return (
     <div className="page-grid">
@@ -37,7 +41,7 @@ export function LibraryPage({ libraryId }: { libraryId: number }) {
       {books.length ? (
         <section className="book-grid span-3">
           {books.map((book) => (
-            <BookCard key={book.id} book={book} />
+            <BookCard key={book.id} book={book} coverLoading={isBookCoverUpdating(book, fallbackCoverLoading)} />
           ))}
         </section>
       ) : (

apps/web/src/pages/LoginPage.tsx

@@ -1,14 +1,36 @@
-import { FormEvent, useState } from "react";
-import { KeyRound, LogIn } from "lucide-react";
+import { FormEvent, useEffect, useState } from "react";
+import { KeyRound, LogIn, ShieldAlert } from "lucide-react";
+import type { AuthStatusDto } from "@readabook/shared";
 import { api } from "../api/client";
+import { loginErrorMessage } from "../auth/errors";
 import { navigate } from "../router";
 import { ErrorRibbon, Panel } from "../components/ui";
 
+const DEFAULT_INITIAL_PASSWORD = "readabook-admin-change-me";
+
 export function LoginPage({ onSessionChange }: { onSessionChange: () => Promise<void> }) {
-  const [email, setEmail] = useState("admin@readabook.local");
+  const [status, setStatus] = useState<AuthStatusDto | null>(null);
+  const [email, setEmail] = useState("");
   const [password, setPassword] = useState("");
   const [error, setError] = useState<string>();
 
+  useEffect(() => {
+    let alive = true;
+    api
+      .authStatus()
+      .then((nextStatus) => {
+        if (!alive) return;
+        setStatus(nextStatus);
+        setEmail((current) => current || nextStatus.initialAdminEmail);
+      })
+      .catch(() => {
+        if (alive) setError("Statut d'authentification indisponible.");
+      });
+    return () => {
+      alive = false;
+    };
+  }, []);
+
   async function submit(event: FormEvent) {
     event.preventDefault();
     setError(undefined);
@@ -17,7 +39,7 @@ export function LoginPage({ onSessionChange }: { onSessionChange: () => Promise<
       await onSessionChange();
       navigate("/home");
     } catch (loginError) {
-      setError(loginError instanceof Error ? loginError.message : "Connexion impossible");
+      setError(loginErrorMessage(loginError));
     }
   }
 
@@ -32,6 +54,23 @@ export function LoginPage({ onSessionChange }: { onSessionChange: () => Promise<
         <KeyRound size={24} />
         <h2>Entrer dans le cabinet</h2>
         <ErrorRibbon message={error} />
+        {status?.hasUsers && (
+          <div className="initial-admin-box">
+            <ShieldAlert size={18} />
+            <div>
+              <strong>Acces admin initial</strong>
+              <span>{status.initialAdminEmail}</span>
+              {status.initialAdminPasswordIsDefault ? (
+                <>
+                  <code>{DEFAULT_INITIAL_PASSWORD}</code>
+                  <small>Mot de passe par defaut atteste par le serveur. Change-le dans Mon compte &gt; Securite.</small>
+                </>
+              ) : (
+                <small>Utilise le mot de passe configure au demarrage ou deja modifie dans le compte.</small>
+              )}
+            </div>
+          </div>
+        )}
         <form onSubmit={submit} className="stack-form">
           <label>
             Email
@@ -46,9 +85,11 @@ export function LoginPage({ onSessionChange }: { onSessionChange: () => Promise<
             Se connecter
           </button>
         </form>
-        <button className="ghost-button full-width" onClick={() => navigate("/setup/admin")}>
-          Initialiser le premier admin
-        </button>
+        {status && !status.hasUsers && (
+          <button className="ghost-button full-width" onClick={() => navigate("/setup/admin")}>
+            Initialiser le premier admin
+          </button>
+        )}
       </Panel>
     </div>
   );

apps/web/src/pages/ProfilePage.tsx

@@ -1,27 +1,95 @@
-import { LogOut, UserRound } from "lucide-react";
+import { FormEvent, useState } from "react";
+import { KeyRound, LogOut, UserRound } from "lucide-react";
 import type { Session } from "../api/types";
 import { api } from "../api/client";
-import { Panel } from "../components/ui";
+import { ErrorRibbon, Panel } from "../components/ui";
 import { navigate } from "../router";
 
 export function ProfilePage({ session, onSessionChange }: { session: Session; onSessionChange: () => Promise<void> }) {
+  const [email, setEmail] = useState(session.user?.email ?? "");
+  const [name, setName] = useState(session.user?.name ?? "");
+  const [currentPassword, setCurrentPassword] = useState("");
+  const [newPassword, setNewPassword] = useState("");
+  const [error, setError] = useState<string>();
+  const [success, setSuccess] = useState<string>();
+
   async function logout() {
     await api.logout();
     await onSessionChange();
     navigate("/login");
   }
 
+  async function updateSecurity(event: FormEvent) {
+    event.preventDefault();
+    setError(undefined);
+    setSuccess(undefined);
+    try {
+      await api.updateMe({
+        email: email === session.user?.email ? undefined : email,
+        name: name || null,
+        currentPassword,
+        newPassword: newPassword || undefined
+      });
+      setCurrentPassword("");
+      setNewPassword("");
+      setSuccess("Identifiants mis a jour.");
+      await onSessionChange();
+    } catch (updateError) {
+      setError(updateError instanceof Error ? updateError.message : "Mise a jour impossible");
+    }
+  }
+
   return (
     <div className="page-grid">
-      <Panel className="span-2 profile-panel">
-        <UserRound size={28} />
-        <h1>{session.user?.name ?? "Lecteur invite"}</h1>
-        <p>{session.user?.email ?? "Session non connectee"}</p>
-        <span>{session.user?.role ?? "vitrine"}</span>
-        <button className="ghost-button" onClick={logout}>
-          <LogOut size={17} />
-          Sortir
-        </button>
+      <Panel className="profile-panel">
+        <div className="profile-identity">
+          <span className="profile-avatar" aria-hidden="true">
+            <UserRound size={28} />
+          </span>
+          <h1>{session.user?.name ?? "Lecteur invite"}</h1>
+          <p>{session.user?.email ?? "Session non connectee"}</p>
+          <span>{session.user?.role ?? "vitrine"}</span>
+        </div>
+        <div className="profile-actions">
+          <button className="ghost-button" onClick={() => document.getElementById("profile-security-form")?.scrollIntoView({ block: "start" })}>
+            <KeyRound size={17} />
+            Modifier
+          </button>
+          <button className="ghost-button" onClick={logout}>
+            <LogOut size={17} />
+            Sortir
+          </button>
+        </div>
+      </Panel>
+      <Panel className="span-2">
+        <div className="section-heading">
+          <h2>Securite</h2>
+          <KeyRound size={20} />
+        </div>
+        <p className="muted-copy">Change l'email et le mot de passe admin initial des que le cabinet est installe.</p>
+        <ErrorRibbon message={error} />
+        {success && <div className="success-ribbon">{success}</div>}
+        <form id="profile-security-form" className="stack-form" onSubmit={updateSecurity}>
+          <label>
+            Email
+            <input value={email} onChange={(event) => setEmail(event.target.value)} type="email" required />
+          </label>
+          <label>
+            Nom
+            <input value={name} onChange={(event) => setName(event.target.value)} />
+          </label>
+          <label>
+            Mot de passe actuel
+            <input value={currentPassword} onChange={(event) => setCurrentPassword(event.target.value)} type="password" required />
+          </label>
+          <label>
+            Nouveau mot de passe
+            <input value={newPassword} onChange={(event) => setNewPassword(event.target.value)} type="password" minLength={8} />
+          </label>
+          <button className="primary-button" type="submit">
+            Enregistrer
+          </button>
+        </form>
       </Panel>
     </div>
   );

apps/web/src/pages/ProfilePagePolish.test.ts

@@ -0,0 +1,17 @@
+import { readFileSync } from "node:fs";
+import { describe, expect, it } from "vitest";
+
+describe("profile page polish", () => {
+  it("focuses the left column on identity and immediate actions", () => {
+    const source = readFileSync(new URL("./ProfilePage.tsx", import.meta.url), "utf8");
+    const styles = readFileSync(new URL("../styles/app.css", import.meta.url), "utf8");
+
+    expect(source).toContain("profile-identity");
+    expect(source).toContain("profile-avatar");
+    expect(source).toContain("profile-actions");
+    expect(source).toContain('id="profile-security-form"');
+    expect(source).toContain("scrollIntoView");
+    expect(styles).toContain(".profile-identity");
+    expect(styles).toContain(".profile-actions");
+  });
+});

apps/web/src/pages/ReaderPage.tsx

@@ -1,57 +1,306 @@
-import { useCallback, useEffect, useMemo, useState } from "react";
-import { ArrowLeft, Save } from "lucide-react";
+import { Component, useCallback, useEffect, useMemo, useState, type ErrorInfo, type ReactNode } from "react";
 import type { BookDto } from "@readabook/shared";
 import { api } from "../api/client";
-import { LoadingState, Meter } from "../components/ui";
-import { navigate } from "../router";
+import { CbzReader } from "../reader/CbzReader";
 import { EpubReader } from "../reader/EpubReader";
+import { pageLocator, parseCbrPageLocator, parseCbzPageLocator, parsePdfPageLocator, pdfPagePercent } from "../reader/locators";
 import { PdfReader } from "../reader/PdfReader";
+import { ReaderShell, type ReaderControls, type ReaderModeControls, type ReaderZoomAnchor, type ReaderZoomControls } from "../reader/ReaderShell";
+import { clampReaderZoom, READER_ZOOM_DEFAULT, READER_ZOOM_STEP } from "../reader/readerLayout";
+import { majorityVisiblePage, type ReaderMode } from "../reader/readerScroll";
+import { useReaderPreferences } from "../reader/useReaderPreferences";
 import { useReaderProgress } from "../reader/useReaderProgress";
+import { navigate } from "../router";
+import { EmptyState, LoadingState, Panel } from "../components/ui";
+
+const idleControls: ReaderControls = {
+  canPrevious: false,
+  canNext: false,
+  positionLabel: "Chargement",
+  onPrevious: () => undefined,
+  onNext: () => undefined
+};
+
+type ReaderCrashBoundaryProps = {
+  resetKey: string;
+  onError: (error: Error) => void;
+  fallbackRender: (error: Error, retry: () => void) => ReactNode;
+  children: ReactNode;
+};
+
+type ReaderCrashBoundaryState = {
+  error: Error | null;
+};
+
+class ReaderCrashBoundary extends Component<ReaderCrashBoundaryProps, ReaderCrashBoundaryState> {
+  state: ReaderCrashBoundaryState = { error: null };
+
+  static getDerivedStateFromError(error: Error) {
+    return { error };
+  }
+
+  componentDidCatch(error: Error, _errorInfo: ErrorInfo) {
+    this.props.onError(error);
+  }
+
+  componentDidUpdate(previousProps: ReaderCrashBoundaryProps) {
+    if (previousProps.resetKey !== this.props.resetKey && this.state.error) {
+      this.setState({ error: null });
+    }
+  }
+
+  retry = () => {
+    this.setState({ error: null });
+  };
+
+  render() {
+    if (this.state.error) return this.props.fallbackRender(this.state.error, this.retry);
+    return this.props.children;
+  }
+}
 
 export function ReaderPage({ bookId }: { bookId: number }) {
   const [book, setBook] = useState<BookDto | null>(null);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState<string>();
   const [page, setPage] = useState(1);
-  const { progress, saving, save } = useReaderProgress(bookId);
+  const [zoom, setZoom] = useState(READER_ZOOM_DEFAULT);
+  const [mode, setMode] = useState<ReaderMode>("horizontal");
+  const [readerControls, setReaderControls] = useState<ReaderControls>(idleControls);
+  const { progress, error: progressError, save, queueSave } = useReaderProgress(bookId);
+  const { preferences, setMode: saveReaderMode, error: preferencesError } = useReaderPreferences(bookId);
+
+  async function loadBook() {
+    setLoading(true);
+    setError(undefined);
+    try {
+      setBook(await api.book(bookId));
+    } catch {
+      setBook(null);
+      setError("Ce livre n'existe pas dans le catalogue.");
+    } finally {
+      setLoading(false);
+    }
+  }
 
   useEffect(() => {
-    api.book(bookId).then(setBook);
+    void loadBook();
   }, [bookId]);
 
   useEffect(() => {
-    if (progress?.locator.startsWith("pdf:page:")) setPage(Number(progress.locator.split(":").at(-1)) || 1);
+    setReaderControls(idleControls);
+    setPage(1);
+    setZoom(READER_ZOOM_DEFAULT);
+    setMode("horizontal");
+  }, [bookId]);
+
+  useEffect(() => {
+    if (book?.format === "pdf" || book?.format === "cbz" || book?.format === "cbr") setMode(preferences.mode);
+    else setMode("horizontal");
+  }, [book?.format, preferences.mode]);
+
+  useEffect(() => {
+    const nextPage = parsePdfPageLocator(progress?.locator) ?? parseCbzPageLocator(progress?.locator) ?? parseCbrPageLocator(progress?.locator);
+    if (nextPage) setPage((current) => (current === nextPage ? current : nextPage));
   }, [progress]);
 
   const fileUrl = useMemo(() => api.bookFileUrl(bookId), [bookId]);
+  const backHref = useMemo(() => (book ? `/book/${book.id}` : "/home"), [book]);
   const savePdfPage = useCallback(
-    (nextPage: number, pages: number) => {
+    (nextPage: number, pages: number, anchor = 1, strategy: "immediate" | "queued" = "immediate") => {
       setPage(nextPage);
-      void save(`pdf:page:${nextPage}`, Math.round((nextPage / pages) * 100));
+      const locator = pageLocator("pdf", nextPage, anchor);
+      const percent = pdfPagePercent(nextPage, pages, anchor);
+      if (strategy === "queued") queueSave(locator, percent);
+      else void save(locator, percent);
     },
-    [save]
+    [queueSave, save]
   );
   const saveEpubLocator = useCallback((locator: string, percent: number) => void save(locator, percent), [save]);
+  const saveComicPage = useCallback(
+    (nextPage: number, pages: number, anchor = 1, strategy: "immediate" | "queued" = "immediate") => {
+      setPage(nextPage);
+      const prefix = book?.format === "cbr" ? "cbr" : "cbz";
+      const locator = pageLocator(prefix, nextPage, anchor);
+      const percent = pdfPagePercent(nextPage, pages, anchor);
+      if (strategy === "queued") queueSave(locator, percent);
+      else void save(locator, percent);
+    },
+    [book?.format, queueSave, save]
+  );
 
-  if (!book) return <LoadingState label="Ouverture du lecteur" />;
+  const readerError = error ?? progressError ?? preferencesError;
+  const supportsZoom = book?.format === "pdf" || book?.format === "cbz" || book?.format === "cbr";
+  const supportsMode = supportsZoom;
+  const currentVisiblePage = useCallback(() => {
+    const stage = document.querySelector(".reader-stage") as HTMLElement | null;
+    if (!stage) return null;
+    const stageRect = stage.getBoundingClientRect();
+    const pages = Array.from(stage.querySelectorAll<HTMLElement>("[data-reader-page]"))
+      .map((element) => {
+        const rect = element.getBoundingClientRect();
+        const pageNumber = Number(element.dataset.readerPage);
+        return Number.isFinite(pageNumber) ? { page: pageNumber, top: rect.top, bottom: rect.bottom } : null;
+      })
+      .filter((item): item is { page: number; top: number; bottom: number } => Boolean(item));
+    return majorityVisiblePage(pages, stageRect.top, stageRect.bottom);
+  }, []);
+  const changeMode = useCallback(
+    (nextMode: ReaderMode) => {
+      const anchorPage = currentVisiblePage() ?? page;
+      setPage(anchorPage);
+      setMode(nextMode);
+      saveReaderMode(nextMode);
+    },
+    [currentVisiblePage, page, saveReaderMode]
+  );
+  const returnToPagedMode = useCallback(() => {
+    setPage(currentVisiblePage() ?? page);
+    setMode("horizontal");
+    saveReaderMode("horizontal");
+  }, [currentVisiblePage, page, saveReaderMode]);
+  const changeZoom = useCallback((nextZoom: number | ((currentZoom: number) => number), anchor?: ReaderZoomAnchor) => {
+    const stage = document.querySelector(".reader-stage") as HTMLElement | null;
+    const scrollRatioX = stage && stage.scrollWidth > stage.clientWidth ? (stage.scrollLeft + stage.clientWidth / 2) / stage.scrollWidth : 0.5;
+    const scrollRatioY = stage && stage.scrollHeight > stage.clientHeight ? stage.scrollTop / (stage.scrollHeight - stage.clientHeight) : 0;
+
+    setZoom((currentZoom) => clampReaderZoom(typeof nextZoom === "function" ? nextZoom(currentZoom) : nextZoom));
+
+    requestAnimationFrame(() => {
+      requestAnimationFrame(() => {
+        if (!stage) return;
+        if (anchor) {
+          const target = stage.querySelector<HTMLElement>(`[data-reader-page="${anchor.page}"]`);
+          if (!target) return;
+          const rect = target.getBoundingClientRect();
+          stage.scrollLeft += rect.left + anchor.offsetX - anchor.clientX;
+          stage.scrollTop += rect.top + anchor.offsetY - anchor.clientY;
+          return;
+        }
+        stage.scrollLeft = Math.max(0, stage.scrollWidth * scrollRatioX - stage.clientWidth / 2);
+        stage.scrollTop = Math.max(0, (stage.scrollHeight - stage.clientHeight) * scrollRatioY);
+      });
+    });
+  }, []);
+  const zoomControls = useMemo<ReaderZoomControls | undefined>(
+    () =>
+      supportsZoom
+        ? {
+            zoom,
+            onZoomChange: (nextZoom, anchor) => changeZoom(nextZoom, anchor),
+            onZoomOut: () => changeZoom((currentZoom) => currentZoom - READER_ZOOM_STEP),
+            onZoomIn: () => changeZoom((currentZoom) => currentZoom + READER_ZOOM_STEP),
+            onZoomReset: () => changeZoom(READER_ZOOM_DEFAULT)
+          }
+        : undefined,
+    [changeZoom, supportsZoom, zoom]
+  );
+  const modeControls = useMemo<ReaderModeControls | undefined>(
+    () =>
+      supportsMode
+        ? {
+            mode,
+            onModeChange: changeMode
+          }
+        : undefined,
+    [changeMode, mode, supportsMode]
+  );
+
+  if (loading && !book) return <LoadingState />;
+
+  if (!book) {
+    return (
+      <section className="reader-missing-page" role="alert">
+        <Panel>
+          <EmptyState title="Livre introuvable" detail={error ?? "Le serveur n'a pas renvoye cet ouvrage."} />
+          <div className="reader-error-actions">
+            <button className="ghost-button" onClick={() => navigate("/home")}>
+              Retour à l'accueil
+            </button>
+            <button className="ghost-button" onClick={() => void loadBook()}>
+              Réessayer
+            </button>
+          </div>
+        </Panel>
+      </section>
+    );
+  }
 
   return (
-    <div className="reader-page">
-      <header className="reader-topbar">
-        <button className="ghost-button" onClick={() => navigate(`/book/${book.id}`)}>
-          <ArrowLeft size={17} />
-          Fiche
-        </button>
-        <div>
-          <strong>{book.title}</strong>
-          <span>{saving ? "Sauvegarde" : "Progression synchronisee"}</span>
-        </div>
-        <Save size={18} />
-      </header>
-      <Meter value={progress?.percent ?? 0} />
-      {book.format === "pdf" ? (
-        <PdfReader url={fileUrl} page={page} onPageChange={savePdfPage} />
-      ) : (
-        <EpubReader url={fileUrl} locator={progress?.locator} onLocatorChange={saveEpubLocator} />
-      )}
-    </div>
+    <ReaderShell
+      title={book?.title ?? "Ouverture du lecteur"}
+      backHref={backHref}
+      error={readerError}
+      onRetry={error ? () => void loadBook() : undefined}
+      controls={readerControls}
+      zoomControls={zoomControls}
+      modeControls={modeControls}
+    >
+      <ReaderCrashBoundary
+        resetKey={`${bookId}:${book?.format ?? "loading"}:${mode}`}
+        onError={() => setReaderControls(idleControls)}
+        fallbackRender={(crashError, retry) => (
+          <div className="reader-error" role="alert">
+            <div>
+              <h2>Le lecteur a rencontré une erreur.</h2>
+              <p>La page reste ouverte. Vous pouvez réessayer, revenir au mode page par page ou retourner à la fiche du livre.</p>
+            </div>
+            <div className="reader-error-actions">
+              <button className="ghost-button" onClick={retry}>
+                Réessayer
+              </button>
+              <button
+                className="ghost-button"
+                onClick={() => {
+                  returnToPagedMode();
+                  retry();
+                }}
+              >
+                Revenir au mode page par page
+              </button>
+              <button className="ghost-button" onClick={() => navigate(backHref)}>
+                Retour à la fiche
+              </button>
+            </div>
+            {crashError.message && (
+              <details>
+                <summary>Détail technique</summary>
+                <pre>{crashError.message}</pre>
+              </details>
+            )}
+          </div>
+        )}
+      >
+        {book.format === "pdf" ? (
+          <PdfReader
+            url={fileUrl}
+            page={page}
+            backHref={backHref}
+            zoom={zoom}
+            mode={mode}
+            onPageCommit={savePdfPage}
+            onControlsChange={setReaderControls}
+          />
+        ) : book.format === "cbz" || book.format === "cbr" ? (
+          <CbzReader
+            bookId={book.id}
+            page={page}
+            zoom={zoom}
+            mode={mode}
+            onPageCommit={saveComicPage}
+            onControlsChange={setReaderControls}
+          />
+        ) : (
+          <EpubReader
+            url={fileUrl}
+            locator={progress?.locator}
+            backHref={backHref}
+            mode="horizontal"
+            onLocatorChange={saveEpubLocator}
+            onControlsChange={setReaderControls}
+          />
+        )}
+      </ReaderCrashBoundary>
+    </ReaderShell>
   );
 }

apps/web/src/pages/ReaderPageCrash.test.ts

@@ -0,0 +1,20 @@
+import { readFileSync } from "node:fs";
+import { describe, expect, it } from "vitest";
+
+describe("ReaderPage crash containment", () => {
+  it("keeps a reader shell or fallback mounted when the CBZ vertical reader crashes", () => {
+    const source = readFileSync(new URL("./ReaderPage.tsx", import.meta.url), "utf8");
+
+    expect(source).toContain("<ReaderShell");
+    expect(source).toMatch(/Reader(ErrorBoundary|CrashBoundary)|componentDidCatch|fallbackRender|onError/);
+  });
+
+  it("keeps explicit recovery actions in the reader crash fallback", () => {
+    const source = readFileSync(new URL("./ReaderPage.tsx", import.meta.url), "utf8");
+
+    expect(source).toContain("Le lecteur a rencontré une erreur.");
+    expect(source).toContain("Réessayer");
+    expect(source).toContain("Revenir au mode page par page");
+    expect(source).toContain("Retour à la fiche");
+  });
+});

apps/web/src/pages/ReaderPageVerticalRestore.test.ts

@@ -0,0 +1,177 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+type ReaderPageElement = {
+  dataset: { readerPage: string };
+  getBoundingClientRect: () => { top: number; bottom: number };
+  scrollIntoView: ReturnType<typeof vi.fn>;
+};
+
+const runtime = vi.hoisted(() => ({
+  stateIndex: 0,
+  refIndex: 0,
+  states: [] as unknown[],
+  frame: null as { closest: ReturnType<typeof vi.fn>; querySelector: ReturnType<typeof vi.fn> } | null,
+  previousMode: "vertical",
+  effects: [] as Array<() => void | (() => void)>,
+  pageElements: [] as ReaderPageElement[]
+}));
+
+vi.mock("react", async () => {
+  const actual = await vi.importActual<typeof import("react")>("react");
+  return {
+    ...actual,
+    useCallback: (callback: unknown) => callback,
+    useEffect: (effect: () => void | (() => void)) => {
+      runtime.effects.push(effect);
+    },
+    useRef: (initial: unknown) => {
+      if (runtime.refIndex === 0) {
+        runtime.refIndex += 1;
+        return { current: runtime.frame };
+      }
+      runtime.refIndex += 1;
+      return { current: initial };
+    },
+    useState: (initial: unknown) => {
+      const index = runtime.stateIndex;
+      runtime.stateIndex += 1;
+      return [runtime.states[index] ?? initial, vi.fn()];
+    }
+  };
+});
+
+vi.mock("../api/client", () => ({
+  api: {
+    cbzPages: vi.fn().mockResolvedValue({
+      bookId: 39,
+      pageCount: 144,
+      pages: Array.from({ length: 144 }, (_, index) => ({ page: index + 1, name: `page-${index + 1}.jpg` }))
+    }),
+    cbzPageUrl: (bookId: number, page: number) => `/books/${bookId}/pages/${page}`
+  }
+}));
+
+import { CbzReader } from "../reader/CbzReader";
+
+type ElementLike = {
+  type: unknown;
+  props?: Record<string, unknown> & { children?: unknown };
+};
+
+function isElementLike(value: unknown): value is ElementLike {
+  return Boolean(value && typeof value === "object" && "type" in value);
+}
+
+function findElementsByType(node: unknown, type: string): ElementLike[] {
+  if (Array.isArray(node)) return node.flatMap((child) => findElementsByType(child, type));
+  if (!isElementLike(node)) return [];
+
+  const matches = node.type === type ? [node] : [];
+  return [...matches, ...findElementsByType(node.props?.children, type)];
+}
+
+function pageElement(page: number, top: number, height = 1000): ReaderPageElement {
+  return {
+    dataset: { readerPage: String(page) },
+    getBoundingClientRect: () => ({ top, bottom: top + height }),
+    scrollIntoView: vi.fn()
+  };
+}
+
+function runEffects() {
+  for (const effect of runtime.effects) effect();
+}
+
+describe("ReaderPage vertical restore", () => {
+  beforeEach(() => {
+    runtime.stateIndex = 0;
+    runtime.refIndex = 0;
+    runtime.effects = [];
+    runtime.pageElements = Array.from({ length: 144 }, (_, index) => pageElement(index + 1, index * 1000));
+    runtime.frame = {
+      closest: vi.fn(() => ({
+        getBoundingClientRect: () => ({ top: 0, bottom: 900 }),
+        addEventListener: vi.fn(),
+        removeEventListener: vi.fn(),
+        querySelectorAll: vi.fn(() => runtime.pageElements)
+      })),
+      querySelector: vi.fn((selector: string) => {
+        const match = selector.match(/\[data-reader-page="(\d+)"\]/);
+        return match ? runtime.pageElements[Number(match[1]) - 1] : null;
+      })
+    };
+    runtime.states = [
+      {
+        bookId: 39,
+        pageCount: 144,
+        pages: Array.from({ length: 144 }, (_, index) => ({ page: index + 1, name: `page-${index + 1}.jpg` }))
+      },
+      undefined,
+      undefined,
+      0,
+      0,
+      { width: 900, height: 900 },
+      null,
+      {}
+    ];
+    vi.stubGlobal("requestAnimationFrame", (callback: FrameRequestCallback) => {
+      callback(0);
+      return 1;
+    });
+    vi.stubGlobal("cancelAnimationFrame", vi.fn());
+    vi.stubGlobal(
+      "ResizeObserver",
+      vi.fn(() => ({
+        observe: vi.fn(),
+        disconnect: vi.fn()
+      }))
+    );
+  });
+
+  it("anchors page 73 of a CBZ/CBR and keeps previous pages reachable in vertical mode", () => {
+    let controls: { onPrevious: () => void } | undefined;
+    const onPageCommit = vi.fn();
+    CbzReader({
+      bookId: 39,
+      page: 73,
+      zoom: 100,
+      mode: "vertical",
+      onPageCommit,
+      onControlsChange: (nextControls) => {
+        controls = nextControls;
+      }
+    });
+
+    runEffects();
+
+    expect(runtime.pageElements[72].scrollIntoView).toHaveBeenCalledWith({ block: "start" });
+
+    runtime.stateIndex = 0;
+    runtime.refIndex = 0;
+    runtime.effects = [];
+    const tree = CbzReader({
+      bookId: 39,
+      page: 73,
+      zoom: 100,
+      mode: "vertical",
+      onPageCommit,
+      onControlsChange: vi.fn()
+    });
+    const figures = findElementsByType(tree, "figure");
+    const images = findElementsByType(tree, "img");
+
+    expect(figures).toHaveLength(144);
+    expect(figures[0].props?.["data-reader-page"]).toBe(1);
+    expect(figures[71].props?.["data-reader-page"]).toBe(72);
+    expect(figures[72].props?.["data-reader-page"]).toBe(73);
+    expect(images[0].props?.src).toBe("/books/39/pages/1");
+    expect(images[71].props?.src).toBe("/books/39/pages/72");
+    expect(images[71].props?.loading).toBe("lazy");
+    expect(images[71].props).not.toHaveProperty("hidden");
+
+    controls?.onPrevious();
+
+    expect(runtime.pageElements[71].scrollIntoView).toHaveBeenCalledWith({ block: "start" });
+    expect(onPageCommit).toHaveBeenCalledWith(72, 144, 1, "immediate");
+  });
+});

apps/web/src/pages/SearchPage.tsx

@@ -1,22 +1,43 @@
 import { FormEvent, useEffect, useState } from "react";
 import { Search } from "lucide-react";
-import type { BookDto } from "@readabook/shared";
-import { api } from "../api/client";
+import type { BookDto, JobDto } from "@readabook/shared";
+import { api, getApiFallback } from "../api/client";
+import { hasActiveCoverWork, isBookCoverUpdating } from "../api/types";
 import { BookCard } from "../components/BookCard";
 import { EmptyState, LoadingState, Panel } from "../components/ui";
 
 export function SearchPage() {
   const [query, setQuery] = useState("");
-  const [books, setBooks] = useState<BookDto[] | null>(null);
+  const [books, setBooks] = useState<BookDto[]>([]);
+  const [jobs, setJobs] = useState<JobDto[]>([]);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState<string>();
+
+  async function loadBooks(nextQuery = query) {
+    setLoading(true);
+    setError(undefined);
+    try {
+      const [nextBooks, nextJobs] = await Promise.all([nextQuery.trim() ? api.search(nextQuery.trim()) : api.books(), api.jobs().catch(() => [])]);
+      setBooks(nextBooks);
+      setJobs(nextJobs);
+    } catch (loadError) {
+      const fallback = getApiFallback<BookDto[]>(loadError);
+      setBooks(fallback ?? []);
+      setError(fallback ? "Catalogue indisponible, affichage de secours." : "Recherche indisponible.");
+    } finally {
+      setLoading(false);
+    }
+  }
+
+  const fallbackCoverLoading = hasActiveCoverWork(jobs);
 
   useEffect(() => {
-    api.books().then(setBooks);
+    void loadBooks("");
   }, []);
 
   async function submit(event: FormEvent) {
     event.preventDefault();
-    setBooks(null);
-    setBooks(query.trim() ? await api.search(query.trim()) : await api.books());
+    await loadBooks(query);
   }
 
   return (
@@ -29,18 +50,29 @@ export function SearchPage() {
             Chercher
           </button>
         </form>
+        {error && (
+          <div className="retry-row">
+            <span>{error}</span>
+            <button className="ghost-button" onClick={() => void loadBooks(query)}>
+              Reessayer
+            </button>
+          </div>
+        )}
       </Panel>
-      {!books ? (
+      {loading && !books.length ? (
         <LoadingState />
       ) : books.length ? (
         <section className="book-grid span-3">
           {books.map((book) => (
-            <BookCard key={book.id} book={book} />
+            <BookCard key={book.id} book={book} coverLoading={isBookCoverUpdating(book, fallbackCoverLoading)} />
           ))}
         </section>
       ) : (
         <Panel className="span-3">
-          <EmptyState title="Aucun specimen" detail="Essaie un autre terme ou relance l'indexation." />
+          <EmptyState
+            title={loading ? "Recherche en cours" : "Aucun specimen"}
+            detail={loading ? "Le formulaire reste disponible." : "Essaie un autre terme ou relance l'indexation."}
+          />
         </Panel>
       )}
     </div>

apps/web/src/pages/SeriesPage.tsx

@@ -0,0 +1,53 @@
+import { useEffect, useMemo, useState } from "react";
+import type { BookDto } from "@readabook/shared";
+import { api } from "../api/client";
+import { bookSeriesInfo } from "../book/metadata";
+import { BookCard } from "../components/BookCard";
+import { EmptyState, LoadingState, Panel } from "../components/ui";
+
+export function SeriesPage({ seriesName }: { seriesName: string }) {
+  const [books, setBooks] = useState<BookDto[] | null>(null);
+
+  useEffect(() => {
+    let alive = true;
+    api.books().then((nextBooks) => {
+      if (alive) setBooks(nextBooks);
+    });
+    return () => {
+      alive = false;
+    };
+  }, []);
+
+  const seriesBooks = useMemo(() => {
+    const expected = seriesName.trim().toLocaleLowerCase();
+    return (books ?? [])
+      .filter((book) => bookSeriesInfo(book)?.title.trim().toLocaleLowerCase() === expected)
+      .sort((left, right) => (bookSeriesInfo(left)?.volumeNumber ?? Number.MAX_SAFE_INTEGER) - (bookSeriesInfo(right)?.volumeNumber ?? Number.MAX_SAFE_INTEGER));
+  }, [books, seriesName]);
+
+  if (!books) return <LoadingState />;
+
+  return (
+    <div className="page-grid">
+      <Panel className="span-3">
+        <div className="section-heading">
+          <div>
+            <h1>{seriesName}</h1>
+            <p>{seriesBooks.length} volumes reperes</p>
+          </div>
+        </div>
+      </Panel>
+      {seriesBooks.length ? (
+        <section className="book-grid span-3">
+          {seriesBooks.map((book) => (
+            <BookCard key={book.id} book={book} />
+          ))}
+        </section>
+      ) : (
+        <Panel className="span-3">
+          <EmptyState title="Serie introuvable" detail="Les volumes apparaitront ici quand le catalogue exposera leur serie." />
+        </Panel>
+      )}
+    </div>
+  );
+}

apps/web/src/pages/adminAutomation.test.ts

@@ -0,0 +1,80 @@
+import { describe, expect, it } from "vitest";
+import type { AdminMetadataSourcesConfig } from "./adminAutomation";
+import {
+  metadataSourcesPayload,
+  moveSource,
+  normalizeMetadataSources,
+  providerLabels,
+  providerUiMessage,
+  providerUiStateLabel,
+  scheduleSummary
+} from "./adminAutomation";
+
+const config: AdminMetadataSourcesConfig = {
+  isbnPriorityEnabled: true,
+  sources: [
+    { provider: "googlebooks", enabled: false, priority: 2, hasApiKey: true },
+    { provider: "local", enabled: false, priority: 99, hasApiKey: false },
+    { provider: "openlibrary", enabled: true, priority: 1, hasApiKey: false },
+    { provider: "bnf", enabled: false, priority: 3, hasApiKey: false },
+    { provider: "comicvine", enabled: true, priority: 4, hasApiKey: false, requiresCredentials: true },
+    { provider: "mangadex", enabled: false, priority: 5, hasApiKey: false }
+  ]
+};
+
+describe("admin automation helpers", () => {
+  it("keeps the local metadata source active and first", () => {
+    expect(normalizeMetadataSources(config).sources[0]).toMatchObject({
+      provider: "local",
+      enabled: true,
+      priority: 0
+    });
+  });
+
+  it("excludes the local source from the update payload", () => {
+    expect(metadataSourcesPayload(normalizeMetadataSources(config))).toEqual({
+      isbnPriorityEnabled: true,
+      sources: [
+        { provider: "openlibrary", enabled: true, priority: 1 },
+        { provider: "googlebooks", enabled: false, priority: 2 },
+        { provider: "bnf", enabled: false, priority: 3 },
+        { provider: "comicvine", enabled: true, priority: 4 },
+        { provider: "mangadex", enabled: false, priority: 5 }
+      ]
+    });
+  });
+
+  it("moves only external providers", () => {
+    const moved = moveSource(normalizeMetadataSources(config).sources, "bnf", -1);
+    expect(moved.map((source) => source.provider)).toEqual(["local", "openlibrary", "bnf", "googlebooks", "comicvine", "mangadex"]);
+  });
+
+  it("summarizes weekly schedules", () => {
+    expect(scheduleSummary({ frequency: "weekly", time: "04:30", dayOfWeek: 1 }, "Scan")).toBe("Scan chaque lundi a 04:30.");
+  });
+
+  it("adds Comic Vine and MangaDex when the backend omits them", () => {
+    const normalized = normalizeMetadataSources({
+      isbnPriorityEnabled: true,
+      sources: [{ provider: "local", enabled: true, priority: 0, hasApiKey: false }]
+    });
+    expect(normalized.sources.map((source) => source.provider)).toContain("comicvine");
+    expect(normalized.sources.map((source) => source.provider)).toContain("mangadex");
+    expect(providerLabels.comicvine).toBe("Comic Vine");
+    expect(providerLabels.mangadex).toBe("MangaDex");
+  });
+
+  it("labels provider configuration, rate limit and error states", () => {
+    expect(providerUiStateLabel({ provider: "comicvine", enabled: true, priority: 1, hasApiKey: false, requiresCredentials: true })).toBe(
+      "A configurer"
+    );
+    expect(providerUiMessage({ provider: "comicvine", enabled: true, priority: 1, hasApiKey: false, requiresCredentials: true })).toBe(
+      "Source activee, configuration incomplete."
+    );
+    expect(providerUiStateLabel({ provider: "mangadex", enabled: true, priority: 2, hasApiKey: false, rateLimited: true })).toBe("Limite");
+    expect(providerUiMessage({ provider: "mangadex", enabled: true, priority: 2, hasApiKey: false, status: "quota_exceeded" })).toBe(
+      "Quota ou limite temporaire atteint. ReadaBook reessaiera plus tard."
+    );
+    expect(providerUiStateLabel({ provider: "mangadex", enabled: true, priority: 2, hasApiKey: false, lastError: "500 stack" })).toBe("Erreur");
+  });
+});

apps/web/src/pages/adminAutomation.ts

@@ -0,0 +1,132 @@
+import type {
+  AutomationScheduleDto,
+  MetadataProviderId,
+  MetadataSourceConfigDto,
+  MetadataSourcesConfigDto,
+  UpdateMetadataSourcesConfigDto
+} from "@readabook/shared";
+
+export type AdminMetadataProviderId = MetadataProviderId | "comicvine" | "mangadex";
+
+export type AdminMetadataSourceConfig = Omit<MetadataSourceConfigDto, "provider"> & {
+  provider: AdminMetadataProviderId;
+  requiresCredentials?: boolean;
+  status?: string | null;
+  state?: string | null;
+  health?: string | null;
+  message?: string | null;
+  lastError?: string | null;
+  rateLimited?: boolean;
+  quotaLimited?: boolean;
+};
+
+export type AdminMetadataSourcesConfig = Omit<MetadataSourcesConfigDto, "sources"> & {
+  sources: AdminMetadataSourceConfig[];
+};
+
+export type ProviderUiState = "configured" | "missing-config" | "limited" | "error";
+
+export const providerLabels: Record<AdminMetadataProviderId, string> = {
+  local: "Fichier local",
+  openlibrary: "OpenLibrary",
+  googlebooks: "Google Books",
+  bnf: "BnF",
+  comicvine: "Comic Vine",
+  mangadex: "MangaDex"
+};
+
+export const defaultMetadataSources: AdminMetadataSourceConfig[] = [
+  { provider: "local", enabled: true, priority: 0, hasApiKey: false },
+  { provider: "openlibrary", enabled: false, priority: 1, hasApiKey: false },
+  { provider: "googlebooks", enabled: false, priority: 2, hasApiKey: false },
+  { provider: "bnf", enabled: false, priority: 3, hasApiKey: false },
+  { provider: "comicvine", enabled: false, priority: 4, hasApiKey: false, requiresCredentials: true },
+  { provider: "mangadex", enabled: false, priority: 5, hasApiKey: false }
+];
+
+const weekdays = ["dimanche", "lundi", "mardi", "mercredi", "jeudi", "vendredi", "samedi"];
+
+export function normalizeMetadataSources(config: MetadataSourcesConfigDto | AdminMetadataSourcesConfig): AdminMetadataSourcesConfig {
+  const received = config.sources as AdminMetadataSourceConfig[];
+  const merged = defaultMetadataSources.map((source) => ({
+    ...source,
+    ...received.find((item) => item.provider === source.provider)
+  }));
+  received.forEach((source) => {
+    if (!merged.some((item) => item.provider === source.provider)) merged.push(source);
+  });
+  const sorted = merged.sort((left, right) => left.priority - right.priority);
+  const local = sorted.find((source) => source.provider === "local") ?? defaultMetadataSources[0];
+  const external = sorted.filter((source) => source.provider !== "local");
+  return {
+    isbnPriorityEnabled: config.isbnPriorityEnabled,
+    sources: [
+      { ...local, enabled: true, priority: 0 },
+      ...external.map((source, index) => ({ ...source, priority: index + 1 }))
+    ]
+  };
+}
+
+export function metadataSourcesPayload(config: AdminMetadataSourcesConfig): UpdateMetadataSourcesConfigDto {
+  const sources: Array<{ provider: AdminMetadataProviderId; enabled: boolean; priority: number; apiKey?: string }> = [];
+  config.sources.forEach((source) => {
+    if (source.provider === "local") return;
+    sources.push({
+      provider: source.provider,
+      enabled: source.enabled,
+      priority: sources.length + 1
+    });
+  });
+  return {
+    isbnPriorityEnabled: config.isbnPriorityEnabled,
+    sources
+  } as UpdateMetadataSourcesConfigDto;
+}
+
+export function moveSource(sources: AdminMetadataSourceConfig[], provider: AdminMetadataProviderId, direction: -1 | 1): AdminMetadataSourceConfig[] {
+  const external = sources.filter((source) => source.provider !== "local");
+  const index = external.findIndex((source) => source.provider === provider);
+  const nextIndex = index + direction;
+  if (index < 0 || nextIndex < 0 || nextIndex >= external.length) return sources;
+
+  const nextExternal = [...external];
+  [nextExternal[index], nextExternal[nextIndex]] = [nextExternal[nextIndex], nextExternal[index]];
+  const local = sources.find((source) => source.provider === "local") ?? { provider: "local", enabled: true, priority: 0, hasApiKey: false };
+  return [local, ...nextExternal].map((source, priority) => ({ ...source, priority: source.provider === "local" ? 0 : priority }));
+}
+
+function sourceStatusText(source: AdminMetadataSourceConfig): string {
+  return [source.status, source.state, source.health].filter(Boolean).join(" ").toLowerCase();
+}
+
+export function providerUiState(source: AdminMetadataSourceConfig): ProviderUiState {
+  const status = sourceStatusText(source);
+  if (source.rateLimited || source.quotaLimited || status.includes("limit") || status.includes("quota")) return "limited";
+  if (source.lastError || status.includes("error") || status.includes("failed")) return "error";
+  if (source.enabled && (source.requiresCredentials ?? false) && !source.hasApiKey) return "missing-config";
+  return "configured";
+}
+
+export function providerUiStateLabel(source: AdminMetadataSourceConfig): string {
+  const state = providerUiState(source);
+  if (state === "missing-config") return "A configurer";
+  if (state === "limited") return "Limite";
+  if (state === "error") return "Erreur";
+  return "Configure";
+}
+
+export function providerUiMessage(source: AdminMetadataSourceConfig): string {
+  const state = providerUiState(source);
+  if (state === "missing-config") return "Source activee, configuration incomplete.";
+  if (state === "limited") return "Quota ou limite temporaire atteint. ReadaBook reessaiera plus tard.";
+  if (state === "error") return "La derniere verification de cette source a echoue.";
+  return source.enabled ? "Source prete." : "Source desactivee.";
+}
+
+export function scheduleSummary(schedule: AutomationScheduleDto, subject: string): string {
+  if (schedule.frequency === "disabled") return `${subject} desactive.`;
+  if (schedule.frequency === "daily") return `${subject} tous les jours a ${schedule.time}.`;
+  return `${subject} chaque ${weekdays[schedule.dayOfWeek]} a ${schedule.time}.`;
+}
+
+export const scheduleDays = weekdays.map((label, value) => ({ label, value }));

apps/web/src/reader/CbzReader.tsx

@@ -0,0 +1,559 @@
+import { useCallback, useEffect, useRef, useState } from "react";
+import { api } from "../api/client";
+import type { CbzPagesDto } from "../api/types";
+import { clampReaderPage, orientedContainPageSize, readableViewportSize, readerPositionLabel, zoomReaderSize, type ReaderSize } from "./readerLayout";
+import { majorityVisiblePage, type ReaderMode } from "./readerScroll";
+import type { ReaderControls } from "./ReaderShell";
+
+type PageCommitStrategy = "immediate" | "queued";
+type PreloadedComicImage = {
+  image: HTMLImageElement;
+  status: "loading" | "loaded" | "error";
+};
+type PreloadPriority = "adjacent" | "deep";
+type VerticalPreloadScheduler = {
+  active: number;
+  generation: number;
+  timer: number | null;
+  queuedPages: Set<number>;
+  queues: Record<PreloadPriority, number[]>;
+};
+
+const VERTICAL_ANCHOR_TOLERANCE_PX = 24;
+const VERTICAL_ANCHOR_STABLE_FRAMES = 18;
+const VERTICAL_ANCHOR_MAX_ATTEMPTS = 180;
+const VERTICAL_INITIAL_SYNC_MAX_ATTEMPTS = 180;
+const VERTICAL_IMAGE_PRELOAD_CONCURRENCY = 3;
+const VERTICAL_IMAGE_PRELOAD_DELAY_MS = 100;
+const VERTICAL_IMAGE_PRELOAD_DEEP_OFFSET = 90;
+const VERTICAL_IMAGE_PRELOAD_DEEP_SPREAD = [0, 1, -1, 2, -2, 3, -3, 4, -4];
+const VERTICAL_IMAGE_PRELOAD_PRIORITIES: PreloadPriority[] = ["adjacent", "deep"];
+
+function scheduleReaderFrame(callback: FrameRequestCallback) {
+  if (typeof requestAnimationFrame === "function") return requestAnimationFrame(callback);
+  callback(0);
+  return 0;
+}
+
+function cancelReaderFrame(frameId: number) {
+  if (frameId && typeof cancelAnimationFrame === "function") cancelAnimationFrame(frameId);
+}
+
+function createVerticalPreloadScheduler(): VerticalPreloadScheduler {
+  return {
+    active: 0,
+    generation: 0,
+    timer: null,
+    queuedPages: new Set<number>(),
+    queues: {
+      adjacent: [],
+      deep: []
+    }
+  };
+}
+
+function uniqueReaderPages(pages: Array<number | null>, currentPage: number, pageCount: number) {
+  const seen = new Set<number>();
+  return pages
+    .map((candidate) => (candidate ? clampReaderPage(candidate, pageCount) : null))
+    .filter((candidate): candidate is number => {
+      if (!candidate || candidate === currentPage || seen.has(candidate)) return false;
+      seen.add(candidate);
+      return true;
+    });
+}
+
+function verticalImagePreloadPlan(currentPage: number, pageCount: number) {
+  const deepCenter = clampReaderPage(currentPage + VERTICAL_IMAGE_PRELOAD_DEEP_OFFSET, pageCount);
+  return {
+    adjacent: uniqueReaderPages([currentPage - 1, currentPage + 1, currentPage + 2], currentPage, pageCount),
+    deep: uniqueReaderPages(
+      VERTICAL_IMAGE_PRELOAD_DEEP_SPREAD.map((offset) => deepCenter + offset),
+      currentPage,
+      pageCount
+    )
+  };
+}
+
+export function CbzReader({
+  bookId,
+  page,
+  zoom,
+  mode,
+  onPageCommit,
+  onControlsChange
+}: {
+  bookId: number;
+  page: number;
+  zoom: number;
+  mode: ReaderMode;
+  onPageCommit: (page: number, pages: number, anchor?: number, strategy?: PageCommitStrategy) => void;
+  onControlsChange: (controls: ReaderControls) => void;
+}) {
+  const frameRef = useRef<HTMLDivElement>(null);
+  const previousModeRef = useRef<ReaderMode | null>(null);
+  const pendingVerticalAnchorRef = useRef(false);
+  const verticalTrackingReadyRef = useRef(false);
+  const verticalUserScrollRef = useRef(false);
+  const verticalAnchorTargetPageRef = useRef<number | null>(null);
+  const verticalAnchorFrameRef = useRef<number | null>(null);
+  const verticalInitialSyncFrameRef = useRef<number | null>(null);
+  const verticalInitialSyncAttemptRef = useRef(0);
+  const verticalInitialSyncDoneRef = useRef(false);
+  const verticalAnchorAttemptRef = useRef(0);
+  const verticalAnchorStableFramesRef = useRef(0);
+  const preloadedImagesRef = useRef(new Map<number, PreloadedComicImage>());
+  const preloadSchedulerRef = useRef(createVerticalPreloadScheduler());
+  const pendingImageSizesRef = useRef<Record<number, ReaderSize>>({});
+  const imageSizeFlushFrameRef = useRef<number | null>(null);
+  const [pages, setPages] = useState<CbzPagesDto | null>(null);
+  const [documentError, setDocumentError] = useState<string>();
+  const [pageError, setPageError] = useState<string>();
+  const [documentAttempt, setDocumentAttempt] = useState(0);
+  const [retryAttempt, setRetryAttempt] = useState(0);
+  const [viewportSize, setViewportSize] = useState<ReaderSize | null>(null);
+  const [imageSize, setImageSize] = useState<ReaderSize | null>(null);
+  const [imageSizes, setImageSizes] = useState<Record<number, ReaderSize>>({});
+
+  useEffect(() => {
+    let alive = true;
+    setDocumentError(undefined);
+    setPageError(undefined);
+    setPages(null);
+    api
+      .cbzPages(bookId)
+      .then((nextPages) => {
+        if (!alive) return;
+        setPages(nextPages);
+        if (page > nextPages.pageCount) onPageCommit(nextPages.pageCount, nextPages.pageCount, 1, "immediate");
+      })
+      .catch((error) => {
+        if (!alive) return;
+        setDocumentError(error instanceof Error && error.message ? `Archive indisponible: ${error.message}` : "Archive indisponible.");
+      });
+    return () => {
+      alive = false;
+    };
+  }, [bookId, documentAttempt]);
+
+  const pageCount = pages?.pageCount ?? 1;
+  const currentPage = clampReaderPage(page, pageCount);
+  const currentName = pages?.pages.find((item) => item.page === currentPage)?.name;
+  const fittedSize = viewportSize && imageSize ? zoomReaderSize(orientedContainPageSize(viewportSize, imageSize), zoom) : null;
+  const imageStyle = fittedSize ? { width: `${fittedSize.width}px`, height: `${fittedSize.height}px` } : undefined;
+  const verticalImageStyle = useCallback(
+    (pageNumber: number) => {
+      const size = imageSizes[pageNumber];
+      if (!viewportSize || !size) return undefined;
+      const fitted = zoomReaderSize(orientedContainPageSize(viewportSize, size), zoom);
+      return { width: `${fitted.width}px`, height: `${fitted.height}px` };
+    },
+    [imageSizes, viewportSize, zoom]
+  );
+  const clearVerticalAnchorFrame = useCallback(() => {
+    if (verticalAnchorFrameRef.current !== null) cancelAnimationFrame(verticalAnchorFrameRef.current);
+    verticalAnchorFrameRef.current = null;
+  }, []);
+  const clearVerticalInitialSync = useCallback(() => {
+    if (verticalInitialSyncFrameRef.current !== null) cancelAnimationFrame(verticalInitialSyncFrameRef.current);
+    verticalInitialSyncFrameRef.current = null;
+  }, []);
+  const queueImageSize = useCallback((pageNumber: number, size: ReaderSize) => {
+    pendingImageSizesRef.current[pageNumber] = size;
+    if (imageSizeFlushFrameRef.current !== null) return;
+    imageSizeFlushFrameRef.current = scheduleReaderFrame(() => {
+      imageSizeFlushFrameRef.current = null;
+      const pending = pendingImageSizesRef.current;
+      pendingImageSizesRef.current = {};
+      setImageSizes((current) => {
+        let changed = false;
+        const next = { ...current };
+        for (const [pageKey, nextSize] of Object.entries(pending)) {
+          const pageNumber = Number(pageKey);
+          const currentSize = current[pageNumber];
+          if (currentSize?.width === nextSize.width && currentSize.height === nextSize.height) continue;
+          next[pageNumber] = nextSize;
+          changed = true;
+        }
+        return changed ? next : current;
+      });
+    });
+  }, []);
+  const drainVerticalPreloadQueue = useCallback(() => {
+    const scheduler = preloadSchedulerRef.current;
+    scheduler.timer = null;
+    if (typeof Image === "undefined") return;
+
+    const nextPage = () => {
+      for (const priority of VERTICAL_IMAGE_PRELOAD_PRIORITIES) {
+        const pageNumber = scheduler.queues[priority].shift();
+        if (pageNumber) {
+          scheduler.queuedPages.delete(pageNumber);
+          return pageNumber;
+        }
+      }
+      return null;
+    };
+
+    while (scheduler.active < VERTICAL_IMAGE_PRELOAD_CONCURRENCY) {
+      const pageNumber = nextPage();
+      if (!pageNumber) return;
+      if (preloadedImagesRef.current.has(pageNumber)) continue;
+
+      const generation = scheduler.generation;
+      const image = new Image();
+      preloadedImagesRef.current.set(pageNumber, { image, status: "loading" });
+      scheduler.active += 1;
+      image.decoding = "async";
+      image.loading = "eager";
+      image.onload = () => {
+        if (generation !== scheduler.generation) return;
+        scheduler.active -= 1;
+        preloadedImagesRef.current.set(pageNumber, { image, status: "loaded" });
+        if (image.naturalWidth > 0 && image.naturalHeight > 0) {
+          queueImageSize(pageNumber, { width: image.naturalWidth, height: image.naturalHeight });
+        }
+        drainVerticalPreloadQueue();
+      };
+      image.onerror = () => {
+        if (generation !== scheduler.generation) return;
+        scheduler.active -= 1;
+        preloadedImagesRef.current.set(pageNumber, { image, status: "error" });
+        drainVerticalPreloadQueue();
+      };
+      image.src = api.cbzPageUrl(bookId, pageNumber);
+    }
+  }, [bookId, queueImageSize]);
+  const enqueueVerticalPreload = useCallback(
+    (plan: Record<PreloadPriority, number[]>) => {
+      const scheduler = preloadSchedulerRef.current;
+      for (const priority of VERTICAL_IMAGE_PRELOAD_PRIORITIES) {
+        if (priority === "deep") {
+          for (const pageNumber of scheduler.queues.deep) scheduler.queuedPages.delete(pageNumber);
+          scheduler.queues.deep = [];
+        }
+        for (const pageNumber of plan[priority]) {
+          if (preloadedImagesRef.current.has(pageNumber) || scheduler.queuedPages.has(pageNumber)) continue;
+          scheduler.queuedPages.add(pageNumber);
+          scheduler.queues[priority].push(pageNumber);
+        }
+      }
+      if (scheduler.timer !== null || scheduler.queuedPages.size === 0) return;
+      scheduler.timer = window.setTimeout(drainVerticalPreloadQueue, VERTICAL_IMAGE_PRELOAD_DELAY_MS);
+    },
+    [drainVerticalPreloadQueue]
+  );
+  const commitVisiblePage = useCallback(
+    (stage: HTMLElement, allowInitialCommit = false) => {
+      if (!pages || !verticalTrackingReadyRef.current) return;
+      if (stage.dataset.readerPinchActive === "true") return;
+      if (!allowInitialCommit && !verticalUserScrollRef.current) return;
+      if (allowInitialCommit && verticalInitialSyncDoneRef.current) return;
+      const stageRect = stage.getBoundingClientRect();
+      const visiblePage = majorityVisiblePage(
+        Array.from(stage.querySelectorAll<HTMLElement>("[data-reader-page]")).map((element) => {
+          const rect = element.getBoundingClientRect();
+          return { page: Number(element.dataset.readerPage), top: rect.top, bottom: rect.bottom };
+        }),
+        stageRect.top,
+        stageRect.bottom
+      );
+      if (visiblePage && visiblePage !== currentPage) {
+        if (allowInitialCommit) verticalInitialSyncDoneRef.current = true;
+        onPageCommit(clampReaderPage(visiblePage, pages.pageCount), pages.pageCount, 1, "queued");
+      }
+    },
+    [currentPage, onPageCommit, pages]
+  );
+  const scheduleInitialVisibleSync = useCallback(
+    (stage: HTMLElement) => {
+      clearVerticalInitialSync();
+      verticalInitialSyncAttemptRef.current = 0;
+
+      const sync = () => {
+        verticalInitialSyncFrameRef.current = null;
+        if (verticalUserScrollRef.current || verticalInitialSyncDoneRef.current) return;
+        if (verticalTrackingReadyRef.current && stage.scrollHeight > stage.clientHeight && stage.scrollTop > Math.max(32, stage.clientHeight * 0.5)) {
+          commitVisiblePage(stage, true);
+        }
+        verticalInitialSyncAttemptRef.current += 1;
+        if (verticalInitialSyncAttemptRef.current >= VERTICAL_INITIAL_SYNC_MAX_ATTEMPTS) return;
+        verticalInitialSyncFrameRef.current = requestAnimationFrame(sync);
+      };
+
+      verticalInitialSyncFrameRef.current = requestAnimationFrame(sync);
+    },
+    [clearVerticalInitialSync, commitVisiblePage]
+  );
+  const stabilizeVerticalAnchor = useCallback(
+    (targetPage: number) => {
+      clearVerticalAnchorFrame();
+      verticalAnchorAttemptRef.current = 0;
+      verticalAnchorStableFramesRef.current = 0;
+      verticalTrackingReadyRef.current = false;
+
+      const measure = () => {
+        const frame = frameRef.current;
+        const stage = frame?.closest(".reader-stage") as HTMLElement | null;
+        const target = frame?.querySelector<HTMLElement>(`[data-reader-page="${targetPage}"]`);
+        if (!stage || !target) return;
+
+        target.scrollIntoView({ block: "start" });
+        verticalAnchorFrameRef.current = requestAnimationFrame(() => {
+          verticalAnchorFrameRef.current = null;
+          const stageRect = stage.getBoundingClientRect();
+          const targetRect = target.getBoundingClientRect();
+          const aligned = Math.abs(targetRect.top - stageRect.top) <= VERTICAL_ANCHOR_TOLERANCE_PX;
+          const cannotScrollFurther = stage.scrollTop + stage.clientHeight >= stage.scrollHeight - 2;
+          verticalAnchorStableFramesRef.current = aligned || cannotScrollFurther ? verticalAnchorStableFramesRef.current + 1 : 0;
+
+          if (verticalAnchorStableFramesRef.current >= VERTICAL_ANCHOR_STABLE_FRAMES) {
+            verticalTrackingReadyRef.current = true;
+            commitVisiblePage(stage, true);
+            scheduleInitialVisibleSync(stage);
+            return;
+          }
+          verticalAnchorAttemptRef.current += 1;
+          if (verticalAnchorAttemptRef.current >= VERTICAL_ANCHOR_MAX_ATTEMPTS) return;
+          verticalAnchorFrameRef.current = requestAnimationFrame(measure);
+        });
+      };
+
+      verticalAnchorFrameRef.current = requestAnimationFrame(measure);
+    },
+    [clearVerticalAnchorFrame, commitVisiblePage, scheduleInitialVisibleSync]
+  );
+
+  const go = useCallback(
+    (nextPage: number) => {
+      if (!pages) return;
+      const target = clampReaderPage(nextPage, pages.pageCount);
+      setPageError(undefined);
+      if (mode === "vertical") {
+        verticalUserScrollRef.current = false;
+        frameRef.current?.querySelector<HTMLElement>(`[data-reader-page="${target}"]`)?.scrollIntoView({ block: "start" });
+      }
+      onPageCommit(target, pages.pageCount, 1, "immediate");
+    },
+    [mode, onPageCommit, pages]
+  );
+
+  useEffect(() => {
+    setPageError(undefined);
+    setImageSize(null);
+  }, [bookId, currentPage, retryAttempt]);
+
+  useEffect(() => {
+    setImageSizes({});
+    pendingImageSizesRef.current = {};
+    preloadedImagesRef.current.clear();
+    const scheduler = preloadSchedulerRef.current;
+    if (scheduler.timer !== null) window.clearTimeout(scheduler.timer);
+    preloadSchedulerRef.current = createVerticalPreloadScheduler();
+    preloadSchedulerRef.current.generation = scheduler.generation + 1;
+  }, [bookId, retryAttempt]);
+
+  useEffect(() => {
+    if (mode !== "vertical" || !pages || typeof Image === "undefined" || !verticalUserScrollRef.current) return;
+    enqueueVerticalPreload(verticalImagePreloadPlan(currentPage, pages.pageCount));
+  }, [currentPage, enqueueVerticalPreload, mode, pages, retryAttempt]);
+
+  useEffect(() => {
+    const frame = frameRef.current;
+    const stage = frame?.closest(".reader-stage") as HTMLElement | null;
+    const observedElement = stage ?? frame;
+    if (!observedElement) return;
+    const updateSize = () => {
+      const rect = observedElement.getBoundingClientRect();
+      const nextSize = readableViewportSize({ width: rect.width, height: rect.height });
+      if (nextSize) setViewportSize(nextSize);
+    };
+    updateSize();
+    const frameId = requestAnimationFrame(updateSize);
+    const observer = new ResizeObserver(updateSize);
+    observer.observe(observedElement);
+    return () => {
+      cancelAnimationFrame(frameId);
+      observer.disconnect();
+    };
+  }, []);
+
+  useEffect(() => {
+    onControlsChange({
+      canPrevious: Boolean(pages) && !documentError && !pageError && currentPage > 1,
+      canNext: Boolean(pages) && !documentError && !pageError && currentPage < pageCount,
+      positionLabel: pages ? readerPositionLabel(currentPage, pageCount) : "Chargement",
+      onPrevious: () => go(currentPage - 1),
+      onNext: () => go(currentPage + 1)
+    });
+  }, [currentPage, documentError, go, onControlsChange, pageCount, pageError, pages]);
+
+  useEffect(() => {
+    if (mode !== "vertical") {
+      previousModeRef.current = mode;
+      pendingVerticalAnchorRef.current = false;
+      verticalTrackingReadyRef.current = false;
+      verticalUserScrollRef.current = false;
+      verticalAnchorTargetPageRef.current = null;
+      verticalInitialSyncDoneRef.current = false;
+      clearVerticalAnchorFrame();
+      clearVerticalInitialSync();
+      return;
+    }
+    const enteringVertical = previousModeRef.current !== "vertical";
+    if (enteringVertical || (!verticalUserScrollRef.current && verticalAnchorTargetPageRef.current !== currentPage)) {
+      pendingVerticalAnchorRef.current = true;
+      verticalTrackingReadyRef.current = false;
+      verticalUserScrollRef.current = false;
+      if (enteringVertical) verticalInitialSyncDoneRef.current = false;
+      clearVerticalAnchorFrame();
+      clearVerticalInitialSync();
+    }
+    if (pendingVerticalAnchorRef.current) {
+      const target = frameRef.current?.querySelector<HTMLElement>(`[data-reader-page="${currentPage}"]`);
+      if (!target) {
+        previousModeRef.current = mode;
+        return;
+      }
+      pendingVerticalAnchorRef.current = false;
+      verticalAnchorTargetPageRef.current = currentPage;
+      stabilizeVerticalAnchor(currentPage);
+    }
+    previousModeRef.current = mode;
+  }, [clearVerticalAnchorFrame, clearVerticalInitialSync, currentPage, mode, pages, stabilizeVerticalAnchor]);
+
+  useEffect(() => {
+    if (mode !== "vertical" || !pages) return;
+    const stage = frameRef.current?.closest(".reader-stage") as HTMLElement | null;
+    if (!stage) return;
+    let frameId = 0;
+    const markUserScroll = () => {
+      if (stage.dataset.readerPinchActive === "true") return;
+      verticalUserScrollRef.current = true;
+    };
+    const markUserScrollKey = (event: KeyboardEvent) => {
+      if (["ArrowUp", "ArrowDown", "PageUp", "PageDown", "Home", "End", " ", "Spacebar"].includes(event.key)) markUserScroll();
+    };
+    const keyTarget = typeof window === "undefined" ? null : window;
+    const updateVisiblePage = () => {
+      frameId = 0;
+      commitVisiblePage(stage);
+    };
+    const onScroll = () => {
+      if (stage.dataset.readerPinchActive === "true") return;
+      if (verticalTrackingReadyRef.current) verticalUserScrollRef.current = true;
+      if (frameId) return;
+      frameId = requestAnimationFrame(updateVisiblePage);
+    };
+    stage.addEventListener("wheel", markUserScroll, { passive: true });
+    stage.addEventListener("touchmove", markUserScroll, { passive: true });
+    stage.addEventListener("pointerdown", markUserScroll, { passive: true });
+    keyTarget?.addEventListener("keydown", markUserScrollKey);
+    stage.addEventListener("scroll", onScroll, { passive: true });
+    scheduleInitialVisibleSync(stage);
+    updateVisiblePage();
+    return () => {
+      if (frameId) cancelAnimationFrame(frameId);
+      stage.removeEventListener("wheel", markUserScroll);
+      stage.removeEventListener("touchmove", markUserScroll);
+      stage.removeEventListener("pointerdown", markUserScroll);
+      keyTarget?.removeEventListener("keydown", markUserScrollKey);
+      stage.removeEventListener("scroll", onScroll);
+    };
+  }, [commitVisiblePage, mode, pages, scheduleInitialVisibleSync]);
+
+  useEffect(() => () => clearVerticalAnchorFrame(), [clearVerticalAnchorFrame]);
+  useEffect(() => () => clearVerticalInitialSync(), [clearVerticalInitialSync]);
+  useEffect(
+    () => () => {
+      if (imageSizeFlushFrameRef.current !== null) cancelReaderFrame(imageSizeFlushFrameRef.current);
+    },
+    []
+  );
+
+  if (documentError) {
+    return (
+      <div className="cbz-reader" ref={frameRef}>
+        <div className="reader-fallback reader-fallback-error">
+          <span>{documentError}</span>
+          <button className="ghost-button" onClick={() => setDocumentAttempt((attempt) => attempt + 1)}>
+            Reessayer
+          </button>
+        </div>
+      </div>
+    );
+  }
+
+  if (!pages) {
+    return (
+      <div className="cbz-reader" ref={frameRef}>
+        <div className="reader-fallback">
+          <span>Chargement de l'archive</span>
+        </div>
+      </div>
+    );
+  }
+
+  if (pageError) {
+    return (
+      <div className="cbz-reader" ref={frameRef}>
+        <div className="reader-fallback reader-fallback-error">
+          <span>{pageError}</span>
+          <button className="ghost-button" onClick={() => setRetryAttempt((attempt) => attempt + 1)}>
+            Reessayer
+          </button>
+        </div>
+      </div>
+    );
+  }
+
+  return (
+    <div className={`cbz-reader${mode === "vertical" ? " cbz-reader-vertical" : ""}`} ref={frameRef}>
+      {mode === "vertical" ? (
+        <div className="reader-vertical-stack">
+          {pages.pages.map((item) => (
+            <figure className="comic-page-frame comic-page-frame-vertical" data-reader-page={item.page} key={`${item.page}-${retryAttempt}`}>
+              {!imageSizes[item.page] && (
+                <div className="reader-fallback">
+                  <span>Page {item.page}</span>
+                </div>
+              )}
+              <img
+                src={api.cbzPageUrl(bookId, item.page)}
+                alt={item.name}
+                fetchPriority={item.page === currentPage ? "high" : "auto"}
+                loading={item.page === currentPage ? "eager" : "lazy"}
+                style={verticalImageStyle(item.page)}
+                onLoad={(event) => {
+                  const { naturalWidth, naturalHeight } = event.currentTarget;
+                  preloadedImagesRef.current.set(item.page, { image: event.currentTarget, status: "loaded" });
+                  queueImageSize(item.page, { width: naturalWidth, height: naturalHeight });
+                }}
+                onError={() => setPageError(`Page ${item.page} indisponible.`)}
+              />
+            </figure>
+          ))}
+        </div>
+      ) : (
+        <figure className="comic-page-frame" data-reader-page={currentPage}>
+          {!imageSize && (
+            <div className="reader-fallback">
+              <span>Page {currentPage}</span>
+            </div>
+          )}
+          <img
+            key={`${currentPage}-${retryAttempt}`}
+            src={api.cbzPageUrl(bookId, currentPage)}
+            alt={currentName ?? `Page ${currentPage}`}
+            style={imageStyle}
+            hidden={!imageSize}
+            onLoad={(event) => {
+              setImageSize({ width: event.currentTarget.naturalWidth, height: event.currentTarget.naturalHeight });
+            }}
+            onError={() => setPageError(`Page ${currentPage} indisponible.`)}
+          />
+        </figure>
+      )}
+    </div>
+  );
+}

apps/web/src/reader/CbzReaderNaturalWidth.test.tsx

@@ -0,0 +1,94 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+const hookState = vi.hoisted(() => ({
+  stateIndex: 0,
+  states: [] as unknown[],
+  updates: [] as unknown[][]
+}));
+
+vi.mock("react", async () => {
+  const actual = await vi.importActual<typeof import("react")>("react");
+  return {
+    ...actual,
+    useCallback: (callback: unknown) => callback,
+    useEffect: () => undefined,
+    useRef: (current: unknown) => ({ current }),
+    useState: (initial: unknown) => {
+      const index = hookState.stateIndex;
+      hookState.stateIndex += 1;
+      hookState.updates[index] = [];
+      return [
+        hookState.states[index] ?? initial,
+        (next: unknown) => {
+          hookState.updates[index].push(next);
+        }
+      ];
+    }
+  };
+});
+
+vi.mock("../api/client", () => ({
+  api: {
+    cbzPages: vi.fn().mockResolvedValue({ bookId: 2, pageCount: 1, pages: [{ page: 1, name: "page-1.jpg" }] }),
+    cbzPageUrl: (bookId: number, page: number) => `/books/${bookId}/pages/${page}`
+  }
+}));
+
+import { CbzReader } from "./CbzReader";
+
+type ElementLike = {
+  type: unknown;
+  props?: Record<string, unknown> & { children?: unknown };
+};
+
+function isElementLike(value: unknown): value is ElementLike {
+  return Boolean(value && typeof value === "object" && "type" in value);
+}
+
+function findElementsByType(node: unknown, type: string): ElementLike[] {
+  if (Array.isArray(node)) return node.flatMap((child) => findElementsByType(child, type));
+  if (!isElementLike(node)) return [];
+
+  const matches = node.type === type ? [node] : [];
+  return [...matches, ...findElementsByType(node.props?.children, type)];
+}
+
+describe("CbzReader vertical image load", () => {
+  beforeEach(() => {
+    hookState.stateIndex = 0;
+    hookState.updates = [];
+    hookState.states = [
+      { bookId: 2, pageCount: 1, pages: [{ page: 1, name: "page-1.jpg" }] },
+      undefined,
+      undefined,
+      0,
+      0,
+      { width: 800, height: 1200 },
+      null,
+      {}
+    ];
+  });
+
+  it("records vertical image dimensions before React clears the load event target", () => {
+    const tree = CbzReader({
+      bookId: 2,
+      page: 1,
+      zoom: 100,
+      mode: "vertical",
+      onPageCommit: vi.fn(),
+      onControlsChange: vi.fn()
+    });
+    const image = findElementsByType(tree, "img")[0];
+    const onLoad = image.props?.onLoad as (event: { currentTarget: { naturalWidth: number; naturalHeight: number } | null }) => void;
+    const event: { currentTarget: { naturalWidth: number; naturalHeight: number } | null } = { currentTarget: { naturalWidth: 480, naturalHeight: 960 } };
+
+    onLoad(event);
+    event.currentTarget = null;
+
+    let nextSizes: unknown;
+    expect(() => {
+      nextSizes = (hookState.updates[7][0] as (current: Record<number, unknown>) => unknown)({});
+    }).not.toThrow();
+    expect(nextSizes).toEqual({ 1: { width: 480, height: 960 } });
+  });
+});

apps/web/src/reader/EpubReader.tsx

@@ -1,37 +1,156 @@
 import { useEffect, useRef, useState } from "react";
+import { ReaderError, readerErrorMessage } from "./ReaderError";
+import type { ReaderControls } from "./ReaderShell";
+import type { ReaderMode } from "../api/types";
 
-type FoliateModule = {
-  EPUB?: unknown;
-  default?: unknown;
+type FoliateLocation = {
+  cfi?: string;
+  fraction?: number;
+  current?: number;
+  total?: number;
 };
 
-export function EpubReader({ url, locator, onLocatorChange }: { url: string; locator?: string; onLocatorChange: (locator: string, percent: number) => void }) {
+type FoliateView = HTMLElement & {
+  open(input: File | Blob | string): Promise<void>;
+  close(): void;
+  goLeft(): Promise<void>;
+  goRight(): Promise<void>;
+  goTo(target: string): Promise<unknown>;
+  next(): Promise<void>;
+  lastLocation?: FoliateLocation;
+};
+
+export function epubFileName(url: string): string {
+  try {
+    const base = globalThis.location?.href ?? "http://readabook.local/";
+    const pathname = new URL(url, base).pathname;
+    const name = pathname.split("/").filter(Boolean).at(-1);
+    return name && name.includes(".") ? name : "book.epub";
+  } catch {
+    return "book.epub";
+  }
+}
+
+function locationPercent(location: FoliateLocation): number {
+  if (typeof location.fraction === "number") return Math.max(0, Math.min(100, location.fraction * 100));
+  if (typeof location.current === "number" && typeof location.total === "number" && location.total > 0) {
+    return Math.max(0, Math.min(100, (location.current / location.total) * 100));
+  }
+  return 1;
+}
+
+export function EpubReader({
+  url,
+  locator,
+  backHref,
+  mode,
+  onLocatorChange,
+  onControlsChange
+}: {
+  url: string;
+  locator?: string;
+  backHref: string;
+  mode: ReaderMode;
+  onLocatorChange: (locator: string, percent: number) => void;
+  onControlsChange: (controls: ReaderControls) => void;
+}) {
   const hostRef = useRef<HTMLDivElement>(null);
-  const [status, setStatus] = useState("Ouverture EPUB");
+  const viewRef = useRef<FoliateView | null>(null);
+  const locatorRef = useRef(locator);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState<string>();
+  const [attempt, setAttempt] = useState(0);
+
+  useEffect(() => {
+    onControlsChange({
+      canPrevious: !loading && !error,
+      canNext: !loading && !error,
+      positionLabel: loading ? "Ouverture EPUB" : "Lecture integree",
+      onPrevious: () => void viewRef.current?.goLeft(),
+      onNext: () => void viewRef.current?.goRight()
+    });
+  }, [error, loading, onControlsChange]);
+
+  useEffect(() => {
+    locatorRef.current = locator;
+  }, [locator]);
 
   useEffect(() => {
     let cancelled = false;
+    let view: FoliateView | null = null;
+
     async function mount() {
       try {
-        const module = (await import("foliate-js/epub.js")) as FoliateModule;
+        setLoading(true);
+        setError(undefined);
+        await import("foliate-js/view.js");
         if (cancelled || !hostRef.current) return;
-        hostRef.current.dataset.engine = module.EPUB || module.default ? "foliate-js" : "fallback";
-        setStatus("EPUB pret");
-        onLocatorChange(locator ?? "epub:start", locator ? 35 : 1);
-      } catch {
-        setStatus("Apercu EPUB indisponible dans ce navigateur");
+
+        const response = await fetch(url, { credentials: "include" });
+        if (!response.ok) throw new Error(`${response.status} ${response.statusText}`);
+        const blob = await response.blob();
+        if (cancelled || !hostRef.current) return;
+
+        view = document.createElement("foliate-view") as FoliateView;
+        view.classList.add("epub-view");
+        view.addEventListener("relocate", (event) => {
+          const location = (event as CustomEvent<FoliateLocation>).detail;
+          if (location?.cfi) onLocatorChange(location.cfi, locationPercent(location));
+        });
+        hostRef.current.replaceChildren(view);
+        viewRef.current = view;
+
+        const file = new File([blob], epubFileName(url), { type: blob.type || "application/epub+zip" });
+        await view.open(file);
+        if (cancelled) return;
+        if (locatorRef.current) await view.goTo(locatorRef.current);
+        else await view.next();
+        setLoading(false);
+      } catch (mountError) {
+        if (!cancelled) {
+          setError(readerErrorMessage(mountError, "EPUB indisponible"));
+          setLoading(false);
+        }
       }
     }
-    mount();
+
+    void mount();
     return () => {
       cancelled = true;
+      view?.close?.();
+      view?.remove();
+      if (viewRef.current === view) viewRef.current = null;
     };
-  }, [locator, onLocatorChange, url]);
+  }, [attempt, onLocatorChange, url]);
+
+  useEffect(() => {
+    viewRef.current?.classList.toggle("epub-view-vertical", mode === "vertical");
+    viewRef.current?.classList.toggle("epub-view-horizontal", mode === "horizontal");
+  }, [mode]);
+
+  if (error) {
+    return (
+      <div className="epub-reader">
+        <ReaderError
+          title="Lecture EPUB indisponible"
+          detail="ReadaBook n'a pas pu ouvrir ce fichier dans le lecteur web."
+          technicalDetail={error}
+          downloadUrl={url}
+          backHref={backHref}
+          onRetry={() => setAttempt((value) => value + 1)}
+        />
+      </div>
+    );
+  }
 
   return (
-    <div className="epub-reader" ref={hostRef}>
-      <iframe title="EPUB" src={url} />
-      <div className="reader-fallback">{status}</div>
+    <div className={`epub-reader epub-reader-${mode}`}>
+      {loading && (
+        <div className="reader-fallback">
+          <span>Ouverture EPUB</span>
+        </div>
+      )}
+      <div className="epub-host" ref={hostRef} />
     </div>
   );
 }

apps/web/src/reader/PdfReader.tsx

@@ -1,56 +1,630 @@
-import { useEffect, useRef, useState } from "react";
+import { useCallback, useEffect, useRef, useState } from "react";
 import * as pdfjs from "pdfjs-dist";
-import workerUrl from "pdfjs-dist/build/pdf.worker.mjs?url";
+import { ReaderError } from "./ReaderError";
+import { pdfDocumentOptions } from "./pdfDocumentOptions";
+import { classifyPdfCanvas, pdfCanvasVisible, pdfRenderScale, pdfSentinelBackground, type PdfRenderResult } from "./pdfRender";
+import { configurePdfWorker } from "./pdfWorker";
+import { clampReaderPage, readableViewportSize, readerPositionLabel, readerZoomFactor, type ReaderSize } from "./readerLayout";
+import { isPageInRenderWindow, majorityVisiblePage, type ReaderMode } from "./readerScroll";
+import type { ReaderControls } from "./ReaderShell";
 
-pdfjs.GlobalWorkerOptions.workerSrc = workerUrl;
+configurePdfWorker(pdfjs);
 
-export function PdfReader({ url, page, onPageChange }: { url: string; page: number; onPageChange: (page: number, pages: number) => void }) {
+type PageCommitStrategy = "immediate" | "queued";
+
+type PdfReaderProps = {
+  url: string;
+  page: number;
+  backHref: string;
+  zoom: number;
+  mode: ReaderMode;
+  onPageCommit: (page: number, pages: number, anchor?: number, strategy?: PageCommitStrategy) => void;
+  onControlsChange: (controls: ReaderControls) => void;
+};
+
+type PdfFailure = {
+  detail: string;
+  technicalDetail: string;
+};
+
+type PdfPageStatus = "idle" | "loading" | PdfRenderResult | "render-failed";
+
+const VERTICAL_ANCHOR_TOLERANCE_PX = 24;
+const VERTICAL_ANCHOR_STABLE_FRAMES = 18;
+const VERTICAL_ANCHOR_MAX_ATTEMPTS = 180;
+const VERTICAL_INITIAL_SYNC_MAX_ATTEMPTS = 180;
+
+function pdfTechnicalMessage(error: unknown) {
+  if (error instanceof Error && error.message.trim()) return `${error.name}: ${error.message}`;
+  if (typeof error === "string" && error.trim()) return error;
+  return "Erreur inconnue.";
+}
+
+function pdfFailure(source: string, detail: string, context: Record<string, unknown>, error?: unknown): PdfFailure {
+  return {
+    detail,
+    technicalDetail: JSON.stringify(
+      {
+        source,
+        ...context,
+        error: error === undefined ? undefined : pdfTechnicalMessage(error)
+      },
+      null,
+      2
+    )
+  };
+}
+
+function isPdfTransitionError(error: unknown) {
+  return error instanceof Error && (error.message.includes("worker is being destroyed") || error.message.includes("Rendering cancelled"));
+}
+
+function scrollContainerFor(element: HTMLElement | null): HTMLElement | null {
+  return element?.closest(".reader-stage") as HTMLElement | null;
+}
+
+function afterNextPaint() {
+  return new Promise<void>((resolve) => requestAnimationFrame(() => resolve()));
+}
+
+function PdfPageCanvas({
+  documentProxy,
+  pageNumber,
+  viewportSize,
+  zoom,
+  active
+}: {
+  documentProxy: pdfjs.PDFDocumentProxy;
+  pageNumber: number;
+  viewportSize: ReaderSize | null;
+  zoom: number;
+  active: boolean;
+}) {
   const canvasRef = useRef<HTMLCanvasElement>(null);
-  const [pages, setPages] = useState(1);
-  const [error, setError] = useState<string>();
+  const [loading, setLoading] = useState(false);
+  const [rendered, setRendered] = useState(false);
+  const [pageStatus, setPageStatus] = useState<PdfPageStatus>("idle");
+  const [pageError, setPageError] = useState<string>();
+  const showCanvas = active && pdfCanvasVisible(rendered, Boolean(pageError));
 
   useEffect(() => {
+    if (!active || !viewportSize) return;
+    const readerViewport = viewportSize;
     let cancelled = false;
-    async function render() {
+    let renderTask: pdfjs.RenderTask | undefined;
+    setLoading(true);
+    setRendered(false);
+    setPageStatus("loading");
+    setPageError(undefined);
+
+    async function renderPage() {
       try {
-        const loadingTask = pdfjs.getDocument({ url, withCredentials: true });
-        const document = await loadingTask.promise;
+        const pdfPage = await documentProxy.getPage(pageNumber);
         if (cancelled) return;
-        setPages(document.numPages);
-        const pdfPage = await document.getPage(Math.max(1, Math.min(page, document.numPages)));
         const canvas = canvasRef.current;
         if (!canvas) return;
-        const viewport = pdfPage.getViewport({ scale: Math.min(1.6, window.devicePixelRatio || 1) });
-        canvas.width = viewport.width;
-        canvas.height = viewport.height;
-        const context = canvas.getContext("2d");
-        if (!context) return;
-        await pdfPage.render({ canvas, canvasContext: context, viewport }).promise;
-        onPageChange(Math.max(1, Math.min(page, document.numPages)), document.numPages);
-      } catch (renderError) {
-        setError(renderError instanceof Error ? renderError.message : "PDF indisponible");
+        const baseViewport = pdfPage.getViewport({ scale: 1 });
+        const fitScale = pdfRenderScale(readerViewport, { width: baseViewport.width, height: baseViewport.height });
+        const pixelRatio = Math.min(2, window.devicePixelRatio || 1);
+        const viewport = pdfPage.getViewport({ scale: Math.max(0.25, fitScale * readerZoomFactor(zoom)) * pixelRatio });
+        const cssWidth = Math.floor(viewport.width / pixelRatio);
+        const cssHeight = Math.floor(viewport.height / pixelRatio);
+        canvas.width = Math.max(1, Math.floor(viewport.width));
+        canvas.height = Math.max(1, Math.floor(viewport.height));
+        canvas.style.width = `${cssWidth}px`;
+        canvas.style.height = `${cssHeight}px`;
+        const context = canvas.getContext("2d", { alpha: false });
+        if (!context) throw new Error("PDF canvas context unavailable");
+        context.fillStyle = pdfSentinelBackground();
+        context.fillRect(0, 0, canvas.width, canvas.height);
+        renderTask = pdfPage.render({ canvas, canvasContext: context, viewport });
+        await renderTask.promise;
+        await afterNextPaint();
+        if (cancelled) return;
+        setPageStatus(classifyPdfCanvas(context.getImageData(0, 0, canvas.width, canvas.height)));
+        setRendered(true);
+        setLoading(false);
+      } catch (error) {
+        if (cancelled || isPdfTransitionError(error)) return;
+        setPageStatus("render-failed");
+        setLoading(false);
+        setPageError(`Page ${pageNumber} indisponible.`);
       }
     }
-    render();
+
+    void renderPage();
     return () => {
       cancelled = true;
+      renderTask?.cancel();
     };
-  }, [url, page, onPageChange]);
+  }, [active, documentProxy, pageNumber, viewportSize, zoom]);
 
   return (
-    <div className="pdf-reader">
-      {error ? <div className="reader-fallback">{error}</div> : <canvas ref={canvasRef} />}
-      <div className="reader-stepper">
-        <button className="ghost-button" onClick={() => onPageChange(Math.max(1, page - 1), pages)}>
-          Precedent
-        </button>
-        <span>
-          {page} / {pages}
-        </span>
-        <button className="ghost-button" onClick={() => onPageChange(Math.min(pages, page + 1), pages)}>
-          Suivant
-        </button>
-      </div>
+    <div className="pdf-page-frame pdf-page-frame-vertical" data-reader-page={pageNumber}>
+      {(!active || !viewportSize || loading || !rendered || pageError) && (
+        <div className={`reader-fallback${pageError ? " reader-fallback-error" : ""}`}>
+          <span>{pageError ?? `Page ${pageNumber}`}</span>
+        </div>
+      )}
+      <canvas ref={canvasRef} data-pdf-render-status={pageStatus} style={{ visibility: showCanvas ? "visible" : "hidden" }} />
+    </div>
+  );
+}
+
+export function PdfReader({ url, page, backHref, zoom, mode, onPageCommit, onControlsChange }: PdfReaderProps) {
+  const frameRef = useRef<HTMLDivElement>(null);
+  const canvasRef = useRef<HTMLCanvasElement>(null);
+  const previousModeRef = useRef<ReaderMode | null>(null);
+  const pendingVerticalAnchorRef = useRef(false);
+  const verticalTrackingReadyRef = useRef(false);
+  const verticalUserScrollRef = useRef(false);
+  const verticalAnchorTargetPageRef = useRef<number | null>(null);
+  const verticalAnchorFrameRef = useRef<number | null>(null);
+  const verticalInitialSyncFrameRef = useRef<number | null>(null);
+  const verticalInitialSyncAttemptRef = useRef(0);
+  const verticalInitialSyncDoneRef = useRef(false);
+  const verticalAnchorAttemptRef = useRef(0);
+  const verticalAnchorStableFramesRef = useRef(0);
+  const [documentProxy, setDocumentProxy] = useState<pdfjs.PDFDocumentProxy | null>(null);
+  const [pages, setPages] = useState(1);
+  const [documentError, setDocumentError] = useState<PdfFailure>();
+  const [pageError, setPageError] = useState<PdfFailure>();
+  const [loadingDocument, setLoadingDocument] = useState(true);
+  const [loadingPage, setLoadingPage] = useState(false);
+  const [pageRendered, setPageRendered] = useState(false);
+  const [pageStatus, setPageStatus] = useState<PdfPageStatus>("idle");
+  const [documentAttempt, setDocumentAttempt] = useState(0);
+  const [pageAttempt, setPageAttempt] = useState(0);
+  const [viewportSize, setViewportSize] = useState<ReaderSize | null>(null);
+
+  const currentPage = clampReaderPage(page, pages);
+  const showCanvas = pdfCanvasVisible(pageRendered, Boolean(pageError));
+  const clearVerticalAnchorFrame = useCallback(() => {
+    if (verticalAnchorFrameRef.current !== null) cancelAnimationFrame(verticalAnchorFrameRef.current);
+    verticalAnchorFrameRef.current = null;
+  }, []);
+  const clearVerticalInitialSync = useCallback(() => {
+    if (verticalInitialSyncFrameRef.current !== null) cancelAnimationFrame(verticalInitialSyncFrameRef.current);
+    verticalInitialSyncFrameRef.current = null;
+  }, []);
+  const commitVisiblePage = useCallback(
+    (stage: HTMLElement, allowInitialCommit = false) => {
+      if (!verticalTrackingReadyRef.current) return;
+      if (stage.dataset.readerPinchActive === "true") return;
+      if (!allowInitialCommit && !verticalUserScrollRef.current) return;
+      if (allowInitialCommit && verticalInitialSyncDoneRef.current) return;
+      const stageRect = stage.getBoundingClientRect();
+      const visiblePage = majorityVisiblePage(
+        Array.from(stage.querySelectorAll<HTMLElement>("[data-reader-page]")).map((element) => {
+          const rect = element.getBoundingClientRect();
+          return { page: Number(element.dataset.readerPage), top: rect.top, bottom: rect.bottom };
+        }),
+        stageRect.top,
+        stageRect.bottom
+      );
+      if (visiblePage && visiblePage !== currentPage) {
+        if (allowInitialCommit) verticalInitialSyncDoneRef.current = true;
+        onPageCommit(clampReaderPage(visiblePage, pages), pages, 1, "queued");
+      }
+    },
+    [currentPage, onPageCommit, pages]
+  );
+  const scheduleInitialVisibleSync = useCallback(
+    (stage: HTMLElement) => {
+      clearVerticalInitialSync();
+      verticalInitialSyncAttemptRef.current = 0;
+
+      const sync = () => {
+        verticalInitialSyncFrameRef.current = null;
+        if (verticalUserScrollRef.current || verticalInitialSyncDoneRef.current) return;
+        if (verticalTrackingReadyRef.current && stage.scrollHeight > stage.clientHeight && stage.scrollTop > Math.max(32, stage.clientHeight * 0.5)) {
+          commitVisiblePage(stage, true);
+        }
+        verticalInitialSyncAttemptRef.current += 1;
+        if (verticalInitialSyncAttemptRef.current >= VERTICAL_INITIAL_SYNC_MAX_ATTEMPTS) return;
+        verticalInitialSyncFrameRef.current = requestAnimationFrame(sync);
+      };
+
+      verticalInitialSyncFrameRef.current = requestAnimationFrame(sync);
+    },
+    [clearVerticalInitialSync, commitVisiblePage]
+  );
+  const stabilizeVerticalAnchor = useCallback(
+    (targetPage: number) => {
+      clearVerticalAnchorFrame();
+      verticalAnchorAttemptRef.current = 0;
+      verticalAnchorStableFramesRef.current = 0;
+      verticalTrackingReadyRef.current = false;
+
+      const measure = () => {
+        const frame = frameRef.current;
+        const stage = scrollContainerFor(frame);
+        const target = frame?.querySelector<HTMLElement>(`[data-reader-page="${targetPage}"]`);
+        if (!stage || !target) return;
+
+        target.scrollIntoView({ block: "start" });
+        verticalAnchorFrameRef.current = requestAnimationFrame(() => {
+          verticalAnchorFrameRef.current = null;
+          const stageRect = stage.getBoundingClientRect();
+          const targetRect = target.getBoundingClientRect();
+          const aligned = Math.abs(targetRect.top - stageRect.top) <= VERTICAL_ANCHOR_TOLERANCE_PX;
+          const cannotScrollFurther = stage.scrollTop + stage.clientHeight >= stage.scrollHeight - 2;
+          verticalAnchorStableFramesRef.current = aligned || cannotScrollFurther ? verticalAnchorStableFramesRef.current + 1 : 0;
+
+          if (verticalAnchorStableFramesRef.current >= VERTICAL_ANCHOR_STABLE_FRAMES) {
+            verticalTrackingReadyRef.current = true;
+            commitVisiblePage(stage, true);
+            scheduleInitialVisibleSync(stage);
+            return;
+          }
+          verticalAnchorAttemptRef.current += 1;
+          if (verticalAnchorAttemptRef.current >= VERTICAL_ANCHOR_MAX_ATTEMPTS) return;
+          verticalAnchorFrameRef.current = requestAnimationFrame(measure);
+        });
+      };
+
+      verticalAnchorFrameRef.current = requestAnimationFrame(measure);
+    },
+    [clearVerticalAnchorFrame, commitVisiblePage, scheduleInitialVisibleSync]
+  );
+
+  const go = useCallback(
+    (nextPage: number) => {
+      const target = clampReaderPage(nextPage, pages);
+      setPageError(undefined);
+      if (mode === "vertical") {
+        verticalUserScrollRef.current = false;
+        frameRef.current?.querySelector<HTMLElement>(`[data-reader-page="${target}"]`)?.scrollIntoView({ block: "start" });
+      }
+      onPageCommit(target, pages, 1, "immediate");
+    },
+    [mode, onPageCommit, pages]
+  );
+
+  useEffect(() => {
+    onControlsChange({
+      canPrevious: !loadingDocument && !documentError && !pageError && currentPage > 1,
+      canNext: !loadingDocument && !documentError && !pageError && currentPage < pages,
+      positionLabel: loadingDocument ? "Chargement" : readerPositionLabel(currentPage, pages),
+      onPrevious: () => go(currentPage - 1),
+      onNext: () => go(currentPage + 1)
+    });
+  }, [currentPage, documentError, go, loadingDocument, onControlsChange, pageError, pages]);
+
+  useEffect(() => {
+    if (mode !== "vertical") {
+      previousModeRef.current = mode;
+      pendingVerticalAnchorRef.current = false;
+      verticalTrackingReadyRef.current = false;
+      verticalUserScrollRef.current = false;
+      verticalAnchorTargetPageRef.current = null;
+      verticalInitialSyncDoneRef.current = false;
+      clearVerticalAnchorFrame();
+      clearVerticalInitialSync();
+      return;
+    }
+    const enteringVertical = previousModeRef.current !== "vertical";
+    if (enteringVertical || (!verticalUserScrollRef.current && verticalAnchorTargetPageRef.current !== currentPage)) {
+      pendingVerticalAnchorRef.current = true;
+      verticalTrackingReadyRef.current = false;
+      verticalUserScrollRef.current = false;
+      if (enteringVertical) verticalInitialSyncDoneRef.current = false;
+      clearVerticalAnchorFrame();
+      clearVerticalInitialSync();
+    }
+    if (pendingVerticalAnchorRef.current) {
+      const target = frameRef.current?.querySelector<HTMLElement>(`[data-reader-page="${currentPage}"]`);
+      if (!target) {
+        previousModeRef.current = mode;
+        return;
+      }
+      pendingVerticalAnchorRef.current = false;
+      verticalAnchorTargetPageRef.current = currentPage;
+      stabilizeVerticalAnchor(currentPage);
+    }
+    previousModeRef.current = mode;
+  }, [clearVerticalAnchorFrame, clearVerticalInitialSync, currentPage, documentProxy, mode, stabilizeVerticalAnchor]);
+
+  useEffect(() => {
+    if (mode !== "vertical") return;
+    const stage = scrollContainerFor(frameRef.current);
+    if (!stage) return;
+    let frameId = 0;
+    const markUserScroll = () => {
+      if (stage.dataset.readerPinchActive === "true") return;
+      verticalUserScrollRef.current = true;
+    };
+    const markUserScrollKey = (event: KeyboardEvent) => {
+      if (["ArrowUp", "ArrowDown", "PageUp", "PageDown", "Home", "End", " ", "Spacebar"].includes(event.key)) markUserScroll();
+    };
+    const keyTarget = typeof window === "undefined" ? null : window;
+    const updateVisiblePage = () => {
+      frameId = 0;
+      commitVisiblePage(stage);
+    };
+    const onScroll = () => {
+      if (stage.dataset.readerPinchActive === "true") return;
+      if (frameId) return;
+      frameId = requestAnimationFrame(updateVisiblePage);
+    };
+    stage.addEventListener("wheel", markUserScroll, { passive: true });
+    stage.addEventListener("touchmove", markUserScroll, { passive: true });
+    stage.addEventListener("pointerdown", markUserScroll, { passive: true });
+    keyTarget?.addEventListener("keydown", markUserScrollKey);
+    stage.addEventListener("scroll", onScroll, { passive: true });
+    scheduleInitialVisibleSync(stage);
+    updateVisiblePage();
+    return () => {
+      if (frameId) cancelAnimationFrame(frameId);
+      stage.removeEventListener("wheel", markUserScroll);
+      stage.removeEventListener("touchmove", markUserScroll);
+      stage.removeEventListener("pointerdown", markUserScroll);
+      keyTarget?.removeEventListener("keydown", markUserScrollKey);
+      stage.removeEventListener("scroll", onScroll);
+    };
+  }, [commitVisiblePage, mode, pages, scheduleInitialVisibleSync]);
+
+  useEffect(() => () => clearVerticalAnchorFrame(), [clearVerticalAnchorFrame]);
+  useEffect(() => () => clearVerticalInitialSync(), [clearVerticalInitialSync]);
+
+  useEffect(() => {
+    const frame = frameRef.current;
+    const stage = scrollContainerFor(frame);
+    const observedElement = stage ?? frame;
+    if (!observedElement) return;
+    const updateSize = () => {
+      const rect = observedElement.getBoundingClientRect();
+      const nextSize = readableViewportSize({ width: rect.width, height: rect.height });
+      if (nextSize) setViewportSize(nextSize);
+    };
+    updateSize();
+    const frameId = requestAnimationFrame(updateSize);
+    const observer = new ResizeObserver(updateSize);
+    observer.observe(observedElement);
+    return () => {
+      cancelAnimationFrame(frameId);
+      observer.disconnect();
+    };
+  }, []);
+
+  useEffect(() => {
+    let cancelled = false;
+    let loadingTask: pdfjs.PDFDocumentLoadingTask | undefined;
+    setLoadingDocument(true);
+    setDocumentError(undefined);
+    setPageError(undefined);
+    setPageRendered(false);
+    setPageStatus("idle");
+    setDocumentProxy(null);
+
+    async function loadDocument() {
+      try {
+        try {
+          new URL(url, window.location.href);
+        } catch (error) {
+          throw pdfFailure("uri", "PDF: URI de fichier invalide.", { url }, error);
+        }
+        configurePdfWorker(pdfjs);
+        loadingTask = pdfjs.getDocument(pdfDocumentOptions({ url, withCredentials: true }, "browser"));
+        const loadedDocument = await loadingTask.promise;
+        if (cancelled) {
+          await loadingTask.destroy();
+          return;
+        }
+        setPages(loadedDocument.numPages);
+        setDocumentProxy(loadedDocument);
+        setLoadingDocument(false);
+      } catch (error) {
+        if (cancelled && isPdfTransitionError(error)) return;
+        if (!cancelled) {
+          setDocumentError(
+            typeof error === "object" && error && "detail" in error && "technicalDetail" in error
+              ? (error as PdfFailure)
+              : pdfFailure(
+                  "getDocument",
+                  "PDF: getDocument() a échoué.",
+                  {
+                    url,
+                    resolvedUrl: (() => {
+                      try {
+                        return new URL(url, window.location.href).toString();
+                      } catch {
+                        return null;
+                      }
+                    })(),
+                    workerSrc: pdfjs.GlobalWorkerOptions.workerSrc,
+                    hasWorkerPort: Boolean(pdfjs.GlobalWorkerOptions.workerPort)
+                  },
+                  error
+                )
+          );
+          setLoadingDocument(false);
+        }
+      }
+    }
+
+    void loadDocument();
+    return () => {
+      cancelled = true;
+      void loadingTask?.destroy();
+    };
+  }, [documentAttempt, url]);
+
+  useEffect(() => {
+    if (mode === "vertical") {
+      setPageError(undefined);
+      return;
+    }
+    if (!documentProxy || !viewportSize) return;
+    const loadedDocument = documentProxy;
+    const readerViewport = viewportSize;
+    let cancelled = false;
+    let renderTask: pdfjs.RenderTask | undefined;
+    setLoadingPage(true);
+    setPageError(undefined);
+    setPageRendered(false);
+    setPageStatus("loading");
+
+    async function renderPage() {
+      try {
+        let pdfPage: pdfjs.PDFPageProxy;
+        try {
+          pdfPage = await loadedDocument.getPage(currentPage);
+        } catch (error) {
+          throw pdfFailure("getPage", `PDF: getPage(${currentPage}) a échoué.`, { pageNumber: currentPage }, error);
+        }
+        if (cancelled) return;
+        const canvas = canvasRef.current;
+        if (!canvas) {
+          throw pdfFailure("react-canvas-ref", `PDF: canvas absent pour la page ${currentPage}.`, { pageNumber: currentPage });
+        }
+        const baseViewport = pdfPage.getViewport({ scale: 1 });
+        const fitScale = pdfRenderScale(readerViewport, { width: baseViewport.width, height: baseViewport.height });
+        const pixelRatio = Math.min(2, window.devicePixelRatio || 1);
+        const zoomedScale = fitScale * readerZoomFactor(zoom);
+        const renderScale = Math.max(0.25, zoomedScale) * pixelRatio;
+        const viewport = pdfPage.getViewport({ scale: renderScale });
+        const cssWidth = Math.floor(viewport.width / pixelRatio);
+        const cssHeight = Math.floor(viewport.height / pixelRatio);
+        canvas.width = Math.max(1, Math.floor(viewport.width));
+        canvas.height = Math.max(1, Math.floor(viewport.height));
+        canvas.style.width = `${cssWidth}px`;
+        canvas.style.height = `${cssHeight}px`;
+        const context = canvas.getContext("2d", { alpha: false });
+        if (!context) {
+          throw pdfFailure("canvas-context", `PDF: contexte canvas 2D indisponible pour la page ${currentPage}.`, {
+            pageNumber: currentPage,
+            canvasWidth: canvas.width,
+            canvasHeight: canvas.height
+          });
+        }
+        if (canvas.width <= 0 || canvas.height <= 0 || cssWidth <= 0 || cssHeight <= 0) {
+          throw pdfFailure("canvas-size", `PDF: dimensions canvas invalides pour la page ${currentPage}.`, {
+            pageNumber: currentPage,
+            canvasWidth: canvas.width,
+            canvasHeight: canvas.height,
+            cssWidth,
+            cssHeight,
+            readerViewport
+          });
+        }
+        context.fillStyle = pdfSentinelBackground();
+        context.fillRect(0, 0, canvas.width, canvas.height);
+        try {
+          renderTask = pdfPage.render({ canvas, canvasContext: context, viewport });
+          await renderTask.promise;
+        } catch (error) {
+          throw pdfFailure(
+            "render-failed",
+            `PDF: render() a échoué pour la page ${currentPage}.`,
+            {
+              result: "render-failed",
+              pageNumber: currentPage,
+              baseViewport: { width: baseViewport.width, height: baseViewport.height },
+              renderViewport: { width: viewport.width, height: viewport.height },
+              canvasWidth: canvas.width,
+              canvasHeight: canvas.height,
+              cssWidth,
+              cssHeight,
+              readerViewport
+            },
+            error
+          );
+        }
+        await afterNextPaint();
+        if (cancelled) return;
+        const renderResult = classifyPdfCanvas(context.getImageData(0, 0, canvas.width, canvas.height));
+        if (renderResult === "blank-detected") {
+          setPageStatus("blank-detected");
+          setPageRendered(true);
+          setLoadingPage(false);
+          return;
+        }
+        if (!cancelled) {
+          setPageStatus("rendered-ok");
+          setPageRendered(true);
+          setLoadingPage(false);
+        }
+      } catch (error) {
+        if (cancelled || isPdfTransitionError(error)) return;
+        setPageRendered(false);
+        setPageStatus("render-failed");
+        setLoadingPage(false);
+        setPageError(
+          typeof error === "object" && error && "detail" in error && "technicalDetail" in error
+            ? (error as PdfFailure)
+            : pdfFailure("render-unclassified", `PDF: erreur non classée pendant le rendu de la page ${currentPage}.`, { pageNumber: currentPage }, error)
+        );
+      }
+    }
+
+    void renderPage();
+    return () => {
+      cancelled = true;
+      renderTask?.cancel();
+    };
+  }, [currentPage, documentProxy, mode, pageAttempt, viewportSize, zoom]);
+
+  if (documentError) {
+    return (
+      <div className="pdf-reader" ref={frameRef}>
+        <ReaderError
+          title="Lecture PDF indisponible"
+          detail={documentError.detail}
+          technicalDetail={documentError.technicalDetail}
+          downloadUrl={url}
+          backHref={backHref}
+          onRetry={() => setDocumentAttempt((value) => value + 1)}
+        />
+      </div>
+    );
+  }
+
+  return (
+    <div className={`pdf-reader${mode === "vertical" ? " pdf-reader-vertical" : ""}`} ref={frameRef}>
+      {loadingDocument || !documentProxy ? (
+        <div className="reader-fallback">
+          <span>Ouverture PDF</span>
+        </div>
+      ) : mode === "vertical" ? (
+        <div className="reader-vertical-stack">
+          {Array.from({ length: pages }, (_, index) => {
+            const pageNumber = index + 1;
+            return (
+              <PdfPageCanvas
+                key={pageNumber}
+                documentProxy={documentProxy}
+                pageNumber={pageNumber}
+                viewportSize={viewportSize}
+                zoom={zoom}
+                active={isPageInRenderWindow(pageNumber, currentPage, pages)}
+              />
+            );
+          })}
+        </div>
+      ) : pageError ? (
+        <div className="pdf-page-frame" data-reader-page={currentPage}>
+          <div className="reader-fallback reader-fallback-error">
+            <span>{pageError.detail}</span>
+            <button className="ghost-button" onClick={() => setPageAttempt((value) => value + 1)}>
+              Reessayer
+            </button>
+            <details>
+              <summary>Détail technique</summary>
+              <pre>{pageError.technicalDetail}</pre>
+            </details>
+          </div>
+        </div>
+      ) : (
+        <div className="pdf-page-frame" data-reader-page={currentPage}>
+          {(!viewportSize || loadingPage || !pageRendered) && (
+            <div className="reader-fallback">
+              <span>Page {currentPage}</span>
+            </div>
+          )}
+          <canvas ref={canvasRef} data-pdf-render-status={pageStatus} style={{ visibility: showCanvas ? "visible" : "hidden" }} />
+        </div>
+      )}
     </div>
   );
 }