- Add request domain, repository, service, and reconcile task
- Add Radarr/Sonarr fulfillment adapters and TMDB discovery
- Expose user and admin request APIs with quota and approval rules
- Add web UI for browsing, requesting, and admin queue management
- Migration 139 introduces media_requests and related tables
- reload introdb API key on setting updates
- support recap/preview markers in playback and next-episode flow
- add profile defaults for recap and preview auto-play settings