- Introduced toggling functionality for managing `characters`, `worlds`, and `locations` tool availability per book.
- Updated `CharacterComponent`, `WorldSetting`, and `LocationComponent` with toggle switches for tool enablement.
- Added `book_tools` database table and related schema migration for storing tool settings.
- Extended API calls, models, and IPC handlers to support tool enablement states.
- Localized new strings for English with supporting descriptions and messages.
- Adjusted conditional rendering logic across components to respect tool enablement.
- Updated relative imports by replacing `@/` aliases with proper `../` paths for consistency.
- Refined type definitions in IPC handlers and repositories (`User`, `Chapter`, `Act`, etc.).
- Simplified return types in `Location` model methods for streamlined usage.
- Introduced new models: `GuideLine`, `Incident`, `PlotPoint`, `Issue`, `Act`, and `World` for managing book-related entities.
- Integrated encryption/decryption for sensitive properties in all models using user-specific keys.
- Added methods for CRUD operations and synchronization workflows with error handling and multilingual support.
- Improved maintainability with JSDoc comments and streamlined queries.
- Introduce new error messages for syncing and book deletion in `en.json`.
- Update `DeleteBook` to support local-only deletion and synced book management.
- Refine offline/online behavior with `deleteLocalToo` checkbox and update related state handling.
- Extend repository and IPC methods to handle optional IDs for updates.
- Add `SyncQueueContext` for queueing offline changes and improving synchronization workflows.
- Enhance refined text generation logic in `DraftCompanion` and `GhostWriter` components.
- Replace PUT with PATCH for world updates to align with API expectations.
- Streamline `AlertBox` by integrating dynamic translation keys for deletion prompts.
- 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.
- Replace absolute import paths with relative paths for consistency across files.
- Transition database operations in Electron main process to modular handlers in `ipc/book.ipc.ts` using the `createHandler` pattern.
- Update database sync service to use `window.electron.invoke()` for improved reliability and structure.
- Refactor `AddNewBookForm` to handle both online and offline book creation seamlessly.
- Delete `Story` model implementation including `getVerbesStyle` method and related properties.
- Cleanup unused interfaces and redundant logic from the codebase.
- Implement `Content` model for converting Tiptap raw data into HTML and plain text.
- Add `Model` for storing and managing AI model configurations with pricing and metadata.
- Introduce `Story` model to handle verbal styles and linguistic properties for diverse narrative structures.
- Update `book.repository.ts` to refine `updateBookBasicInformation` and `insertNewPlotPoint` methods, removing unused parameters and optimizing queries.
