- Add DocumentProcessor class for smart content analysis
- Implement automatic title generation
- Add automatic tagging system
- Add intelligent categorization
- Add metadata support with YAML front matter
- Update documentation with new features
- Add jieba dependency for Chinese text processing
- Add PyQt6-based modern GUI
- Add system tray support
- Add dark/light theme support
- Refactor app into service architecture
- Update documentation with GUI features
- Add cross-platform compatibility