This merge brings the complete Electron desktop application implementation into main branch:
- Full Electron desktop architecture with cross-platform support
- Complete i18n internationalization system (English/Chinese)
- Mobile keyboard support and responsive design improvements
- Updated dependencies and version 1.6.0
- Enhanced user interface components and admin functionality
- Directory restructure from src/ui/Apps/* to src/ui/Desktop/Apps/*
All merge conflicts resolved preserving i18n functionality as requested.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
