- Added `ca-certificates` installation to Dockerfile for improved network security.
- Updated health check command in Dockerfile to include better timeout handling.
- Refactored `run_helper.py` to implement proper signal handling and logging during shutdown.
- Transitioned database operations to an asynchronous model in `async_db.py`, improving performance and responsiveness.
- Updated database schema to support new foreign key relationships and optimized indexing for better query performance.
- Enhanced various bot handlers to utilize async database methods, improving overall efficiency and user experience.
- Removed obsolete database and fix scripts to streamline the project structure.
- Implemented methods to check and mark if a user has received a welcome message from the voice bot in both async and synchronous database classes.
- Updated database schema to include a new field for tracking welcome message status.
- Enhanced voice handler to utilize the new tracking methods, improving user interaction flow and engagement metrics.
- Added voice message handling capabilities, including saving and deleting audio messages via callback queries.
- Refactored audio record management in the database to remove unnecessary fields and streamline operations.
- Introduced new keyboard options for voice interactions in the bot.
- Updated `.gitignore` to include voice user files for better project organization.
- Removed obsolete voice bot handler files to simplify the codebase.
