- Added a new section in the data management documentation for testing, including a link to unified test mocks for Cache, Preference, and DataApi.
- Refined the README for test mocks, providing a clearer overview and detailed descriptions of available mocks and their organization.
- Improved the structure and clarity of mock usage examples, ensuring better guidance for developers on utilizing the testing utilities effectively.
- Introduced a new method `runCustomMigrations` in `DbService` to execute custom SQL statements that Drizzle cannot manage, such as triggers and virtual tables.
- Updated `database-patterns.md` and `README.md` to document the handling of custom SQL and its importance in maintaining database integrity during migrations.
- Refactored `messageFts.ts` to define FTS5 virtual table and associated triggers as idempotent SQL statements for better migration management.
- Implemented detailed preparation, execution, and validation phases for migrating chat topics and messages from Dexie to SQLite.
- Added robust logging and error handling to track migration progress and issues.
- Introduced data transformation strategies to convert old message structures into a new tree format, ensuring data integrity and consistency.
- Updated migration guide documentation to reflect changes in migrator registration and detailed comments for maintainability.
- Introduced type-safe access methods for shared cache in the Main process, including `getShared`, `setShared`, `hasShared`, and `deleteShared`.
- Implemented `getAllShared` for initializing new Renderer windows with the complete shared cache state.
- Updated IPC communication to support bidirectional synchronization of shared cache between Main and Renderer processes.
- Enhanced cache management with absolute timestamps for TTL, ensuring precise expiration handling across windows.
- Added ready state tracking in Renderer for improved synchronization feedback during initialization.
- Refactored related documentation to reflect new features and usage patterns for shared cache.
- Revised the README files for shared data and main data layers to improve clarity and structure.
- Consolidated documentation on shared data types and API types, removing the now-deleted `api-design-guidelines.md`.
- Streamlined directory structure descriptions and updated links to relevant documentation.
- Enhanced quick reference sections for better usability and understanding of the data architecture.
