- Consolidated user ID retrieval and permission checks into helper functions.
- Updated UserHandler to utilize BaseHandler for common database and configuration access.
- Enhanced logging for user-related operations, including login, registration, and password changes.
- Removed redundant context handling in middleware and improved readability.
- Introduced FileUtil for file URL generation and management, encapsulating file-related logic.
- Refactored FileRepo and UserRepo to streamline database operations and error handling.
- Deleted unused request_id middleware and integrated its functionality into request_logger.
- Removed legacy test runner script to simplify testing process.
