- Add `OfflineContext` and `BookContext` to components for offline state management.
- Introduce conditional logic to toggle between server API requests and offline IPC handlers for CRUD operations.
- Refine `TextEditor`, `DraftCompanion`, and other components to disable actions or features unavailable in offline mode.
- Improve error handling and user feedback in both online and offline scenarios.
- Integrate `OfflineContext` into `MainChapter` and related components to handle offline scenarios for chapter operations.
- Add conditional logic to toggle between server API requests and offline IPC handlers (`db:chapter:add`, `db:chapter:remove`).
- Extend `GET /book/story` endpoint to include `mainChapter` data.
- Refactor IPC handlers for chapters to accept structured data arguments with stricter typings.
- Update frontend key assignments for `BookList` component for improved rendering stability.
- Removed unnecessary React imports.
- Adjusted package.json scripts for Electron integration.
- Updated components to replace Next.js-specific imports with Electron-compatible alternatives.
- Minor tsconfig.json changes for better compatibility.
