- Added file attachment support in chat messages, allowing users to upload and send files.
- Implemented a new API endpoint to retrieve message attachments.
- Updated chat components to display attachments and handle file uploads.
- Improved user experience with loading indicators and toast notifications for file uploads.
- Refactored chat bottom bar to integrate file upload functionality seamlessly.
- Enhanced chat list to show attachments associated with messages.
- Updated database schema to support attachments in chat messages.
Co-authored-by: Copilot <copilot@github.com>
