fix(api): migrations idempotentes pour bases existantes (metadata/automation)

Les colonnes metadata_source_config et automation_settings sont
désormais ajoutées par ALTER TABLE conditionnels sur les bases déjà
initialisées, l'index books_isbn13_idx est créé via le chemin de
migration, et un test couvre la base de données existante.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

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

@@ -0,0 +1,109 @@
+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";
+
+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("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);
+    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
+      );
+    `);
+    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 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(bookIndexes.map((index) => index.name)).toContain("books_isbn13_idx");
+    expect(metadataSources.map((source) => source.provider)).toEqual(["local", "openlibrary", "googlebooks", "bnf"]);
+    expect(automationSettings).toMatchObject({ id: 1, isbn_priority_enabled: 1 });
+
+    database.onModuleDestroy();
+  });
+});