Initial commit: Complete WebSocket SSH tunneling system

- WebSocket SSH Daemon (wssshd) with web management interface
- WebSocket SSH Client (wssshc) with password authentication
- SSH wrapper (wsssh) with intelligent hostname parsing
- SCP wrapper (wsscp) with tunneling support
- Professional web UI with user management and HTML5 terminal
- SQLite database for persistent user storage
- Role-based access control (admin/normal users)
- SSL certificate auto-generation during build
- Automated build system with venv management
- Comprehensive documentation and examples