Implement multi-process Video AI architecture

- Add socket-based inter-process communication
- Implement backend process for request routing
- Create separate web interface process
- Add CUDA/ROCm worker processes for analysis and training
- Add configuration system for backend selection
- Update build scripts for multi-component executables
- Add startup scripts for process orchestration
- Include GPLv3 license and copyright notices
- Add comprehensive documentation and README
- Create CHANGELOG for version tracking