feat: Major server enhancements and build system
- Implemented file caching system with LRU eviction
- Added thread pool for connection handling
- Improved MIME type detection and security headers
- Added rate limiting per IP address
- Enhanced logging system with rotation
- Added proper signal handling and graceful shutdown
- Implemented SSL/TLS support with modern cipher suites
- Added license (MIT) and disclaimer
- Fixed CSS/JS MIME type issues
- Optimized socket configuration
- Added sendfile() optimization
- Improved error handling and memory management
Technical changes:
- Set TCP_NODELAY and optimized socket buffers
- Implemented epoll-based async I/O
- Added file cache with 1MB max file size
- Set 100MB max log file size with rotation
- Added thread pool with 32 max threads
- Implemented rate limiting (100 requests/60s)
- Added proper MIME type detection
- Fixed CSP headers for external resources
- Added comprehensive input sanitization
- Improved SSL context configuration
- Added proper resource cleanup
