- 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.
- 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.
