f6966a092a
- Per-profile playlist persistence (session_files/{profile} in QSettings)
- Training data resolves source videos via playlist paths before fallback dir
- Guard against deleted video files in _load_file
- Fix marker double-click to seek to exact marker time instead of click pixel
- Show manual clip spans as light amber areas on the timeline
- Extend marker tuples with clip_span from DB (clip_duration + overlap)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>