- New TUI using Textual framework with responsive interface
- Search, results, download, and queue screens for YouTube video management
- Download queue system with sequential background downloads
- Status bar with queue count and download progress indicators
- Comprehensive test suite (97 tests) with 100% pass rate
- Modern Python packaging with pyproject.toml and uv support
- Added requirements-tui.txt for TUI-specific dependencies
- Updated setup.py and install.sh for TUI integration
- Enhanced README.md with TUI usage documentation
