Add support for real-time camera feed processing #1
Description
Currently the system only processes pre-recorded video files. We need to add functionality to process live camera feeds for real-time traffic monitoring.
Acceptance Criteria:
- Support for webcam input (USB cameras)
- Support for IP camera streams (RTSP/HTTP)
- Real-time detection with minimal latency
- Live preview window with detection overlays
- Performance optimization for continuous processing