Initial commit: Complete Fixture Manager daemon system

- Comprehensive Python daemon system for Linux servers
- Secure web dashboard with authentication and authorization
- RESTful API with JWT authentication
- MySQL database connectivity with connection pooling
- Advanced file upload system with real-time progress tracking
- Intelligent CSV/XLSX fixture parsing algorithms
- Two-stage upload workflow (fixture files + ZIP files)
- Full Linux daemon process management with systemd integration
- Complete security implementation with rate limiting and validation
- SHA1 checksum calculation and verification
- Automated installation and deployment scripts
- Comprehensive documentation and configuration management