- Integrated sync queue mechanisms with `LocalSyncQueueContext` for offline data handling.
- Updated key sync-related services (e.g., book, chapter, series) to support offline-first functionality.
- Removed redundant database fetch methods to optimize repository logic and improve maintainability.
- Enhanced Tauri IPC usage for sync operations and removed legacy methods in Rust services.
- Simplified `run_dev_queries` by delegating schema updates to `run_migrations` for consistency.
- Added universal `fetch_all_*_by_book` methods for streamlined data retrieval across repositories.
- Replaced nested query logic with batch fetching to improve performance and maintainability.
- Optimized HTML-to-text conversion by consolidating regex patterns with `LazyLock`.
- Replaced legacy vault key derivation with OS keyring-backed storage for improved security and platform integration.
- Introduced PIN rate limiting with configurable lockout durations to mitigate brute-force attacks.
- Enhanced tombstone services to use unified error-handling logic via `apply_tombstone`.
- Refactored logic for book and series data synchronization, fixing null checks and improving flow consistency.
- Added comprehensive error handling to all database and vault operations in key manager services.
- Added offline detection logic with `OfflineContext` to improve app functionality in offline scenarios.
- Integrated Tauri IPC functions to handle local tool settings and character attributes when offline.
- Refined indentation logic in `TextEditor` for better compatibility with WebKit engines.
- Removed unused `indent` property and related settings in editor components to simplify configuration.
- Updated locale files with improved translation consistency and parameterized placeholders.
- Introduced new translations for terms of use in French and English locales.
- Added sync status detection logic for books in `BookList` and `BookCard` components.
- Refactored `BookCard` to handle additional props and improve layout flexibility.
- Enhanced `TermsOfUse` component with complete localization support and refuse functionality.
- Updated data decryption logic in Rust services to handle optional fields and additional metadata consistently.
- Improved offline/online synchronization workflows with extended context properties.
- Removed unused services (`cover`, `character`, `series_location` modules) and legacy methods to reduce code clutter.
- Consolidated `IncidentProps` and `PlotPointProps` into `incident.service` and `plotpoint.service` modules, replacing duplicated definitions.
- Updated references across modules (`act`, `incident.service`, `character`) for consistency.
- Improved serialization with `serde` for `IncidentProps`.
- Enhanced `get_incitents_incidents` to include optional chapters.
- Introduced `DatabaseManager` for handling SQLite connections per user with WAL and foreign key support.
- Implemented `initialize_schema` to set up comprehensive database schema covering AI, books, characters, locations, series, and sync tracking.
- Added migration helpers for schema versioning and column updates.
- Structured database module into `connection.rs` and `schema.rs` for clearer organization.
- Replaced `window.electron.invoke` calls with equivalent `tauri` function calls for all IPC interactions.
- Removed `electron.d.ts` TypeScript definitions as they are no longer needed.
- Updated related logic for offline/online state synchronization.
- Added `types.rs` and `shared/mod.rs` modules to support Tauri IPC integration with Rust enums and shared logic.
- Refactored IPC request queues to use updated handler names for consistency with Tauri.
