Update database schema and synchronization logic

- Add `useEffect` in `ScribeLeftBar` for handling book state changes.
- Extend `BooksSyncContext` with new properties and stricter typings.
- Refine `Repositories` to include `lastUpdate` handling for synchronization processes.
- Add comprehensive `fetchComplete*` repository methods for retrieving entity-specific sync data.
- Enhance offline logic for chapters, characters, locations, and world synchronization.
- Improve error handling across IPC handlers and repositories.

electron/ipc/book.ipc.ts

@@ -1,6 +1,6 @@
 import { ipcMain } from 'electron';
 import { createHandler } from '../database/LocalSystem.js';
-import Book, {CompleteBook, SyncedBook} from '../database/models/Book.js';
+import Book, {BookSyncCompare, CompleteBook, SyncedBook} from '../database/models/Book.js';
 import type { BookProps, GuideLine, GuideLineAI, Act, Issue, WorldProps } from '../database/models/Book.js';
 import Chapter from '../database/models/Chapter.js';
 import type { ChapterProps } from '../database/models/Chapter.js';
@@ -130,6 +130,22 @@ ipcMain.handle('db:book:updateBasicInformation', createHandler<UpdateBookBasicDa
     )
 );
 
+// GET /book/sync/to-client - Get book data to sync to client
+ipcMain.handle('db:book:sync:toServer', createHandler<BookSyncCompare, CompleteBook>(
+        async function(userId: string, data:BookSyncCompare, lang: 'fr' | 'en'):Promise<CompleteBook> {
+            return await Book.getCompleteSyncBook(userId, data, lang);
+        }
+    )
+);
+
+// GET /book/sync/from-server - Get book data to sync from server
+ipcMain.handle('db:book:sync:toClient', createHandler<CompleteBook, boolean>(
+        async function(userId: string, data:CompleteBook,  lang: 'fr' | 'en'):Promise<boolean> {
+            return await Book.syncBookFromServerToClient(userId, data, lang);
+        }
+    )
+);
+
 // GET /book/guide-line - Get guideline
 ipcMain.handle('db:book:guideline:get',
     createHandler<GetGuidelineData, GuideLine | null>(async function(userId: string, data: GetGuidelineData, lang: 'fr' | 'en') {