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/api/src/database/schema.ts

@@ -37,7 +37,7 @@ export const books = sqliteTable(
     language: text("language"),
     publisher: text("publisher"),
     publishedDate: text("published_date"),
-    format: text("format", { enum: ["epub", "pdf"] }).notNull(),
+    format: text("format", { enum: ["epub", "pdf", "cbz"] }).notNull(),
     filePath: text("file_path").notNull(),
     coverPath: text("cover_path"),
     fileSize: integer("file_size").notNull(),