- Add video duration detection using ffprobe
- Add timer-based video completion tracking
- Implement PLAY_VIDEO_MATCH_DONE and PLAY_VIDEO_RESULT_DONE message sending
- Add OVER/UNDER video sequence handling
- Enhance video switching with loop parameter
- Update version to 1.0.14

The headless streamer now works identically to Qt player:
- Plays INTRO video (looping) until match starts
- Plays MATCH video (non-looping) with completion timer
- Sends PLAY_VIDEO_MATCH_DONE when match video ends
- Plays RESULT video (non-looping) with completion timer
- Sends PLAY_VIDEO_RESULT_DONE when result video ends
- Handles OVER/UNDER video sequences automatically
- Switches back to INTRO for next match

Files modified:
- mbetterclient/core/rtsp_streamer.py (enhanced functionality)
- build.py (version 1.0.14)
- main.py (version 1.0.14)
- mbetterclient/config/settings.py (version 1.0.14, user_agent 1.0r14)
- mbetterclient/__init__.py (version 1.0.14)
- mbetterclient/web_dashboard/app.py (version 1.0.14)
- test_reports_sync_fix.py (user_agent 1.0r14)

Files added:
- test_headless_streaming.py (comprehensive test script)
- HEADLESS_STREAMING_IMPLEMENTATION.md (detailed documentation)