feat(api,web): support CBZ — scan, métadonnées, lecteur d'albums

- api: cbz utilitaire commun, scanner/métadonnées (+ tests), books, schéma et migrations
- web: CbzReader, ReaderPage/locators (+ tests), types et client API
- shared: types formats

Refs: #16

apps/web/src/api/client.ts

@@ -13,7 +13,7 @@ import type {
   UserDto
 } from "@readabook/shared";
 import { mockBooks, mockContinue, mockJobs, mockLibraries, mockProgress, mockUser } from "./mockData";
-import type { ContinueItem, Session } from "./types";
+import type { CbzPagesDto, ContinueItem, Session } from "./types";
 
 const API_BASE = import.meta.env.VITE_API_BASE_URL ?? "";
 
@@ -135,6 +135,12 @@ 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}`, {