- Add services for offline data management, including `offline-data.service.ts`, ensuring data is saved to a local database and synced with the server when online.
- Introduce bidirectional `SyncService` for managing data synchronization with conflict resolution and retry mechanisms.
- Create `data.service.ts` to handle smart routing between local database and server API based on connectivity status.
- Update models and logic to support comprehensive synchronization for books, chapters, characters, and conversations.
- Implement event listeners for online/offline detection and automatic sync scheduling.
- Implement `remove-inline-scripts.js` to externalize Next.js inline scripts, enhancing CSP compliance.
- Add models for `Book`, `Character`, `Story`, `Editor`, `System`, and `BookSerie` with relevant properties and utilities.
- Include macOS entitlements plist for app development with advanced permissions.
- Add utility functions to handle script hashing, cookie management, and content formatting.
