- Added `get_latest_email_date()` function in `database.py` to retrieve the most recent email date for a given account and folder.
- Enhanced `fetch_folder_emails()` in `zoho_client.py` to intelligently determine the start date for fetching emails based on the latest email date in the database.
- Introduced `analyze_and_update_threads_async()` for asynchronous analysis of email threads, allowing concurrent processing.
- Created a synchronous wrapper `analyze_and_update_threads()` for easier integration.
- Updated `fetch_emails()` to support database session and account email parameters.
- Added comprehensive documentation in `AI_ANALYSIS_GUIDE.md` detailing the new AI analysis functionality.
- Implemented tests for the new features, including `test_fetch_with_db.py`, `test_ai_analysis.py`, and `test_single_analysis.py`.
- Added error handling and logging improvements throughout the codebase.
- Added alerts processing logic in src/alerts.py to analyze threads and send WhatsApp alerts based on configured time frames.
- Created FastAPI application in src/app.py to manage threads, display configurations, and trigger alert processing.
- Developed database models and utility functions in src/database.py for managing threads and messages.
- Integrated Twilio API for sending WhatsApp messages in src/whatsapp_sender.py.
- Implemented Zoho email client in src/zoho_client.py to fetch emails and check for replies.
- Added configuration management for email settings and alert parameters.
- Established auto-processing loop for periodic email syncing and alert generation.