- Add video phase tracking in RTSPStreamer (idle, intro, match, result)
- Implement HLS delay compensation for overlay template synchronization
- Fix results template not showing after match video ends
- Add phase transition handling with configurable delay compensation
- Update overlay API endpoint to include video phase state
- Add phaseTransitionTimer for delayed template changes

This ensures overlay templates are synchronized with HLS video playback
by compensating for FFmpeg encoding and web player buffering delays.