✨ Features:
- GitHub releases integration with version checking
- TUI update notifications with user-friendly interface
- CLI update commands (check-update, update)
- Discrete notifications that don't interrupt workflow
- Legacy user detection for older versions
- Safe update process with backup and rollback
- Progress bars and user confirmation
- Configurable update preferences
🔧 Technical:
- UpdateChecker class with GitHub API integration
- UpdateConfig for user preferences
- Graceful fallbacks when network unavailable
- Auto-restart after successful updates
- Works with both TUI and CLI interfaces
🎯 User Experience:
- TUI: Shows update banner on startup if available
- CLI: Discrete one-line notice for regular commands
- Commands: 'rag-mini check-update' and 'rag-mini update'
- Non-intrusive design respects user workflow
This provides seamless updates for the critical improvements
we've been implementing while giving users full control.
