- Manage Workers modal: register fanart.tv / OpenSubtitles / YouTube Votes (RYD)
/ SponsorBlock in the worker rail (cards + animations + pause/resume come free
via the shared .em-* design); add the 'video' entity kind.
- Settings: fanart.tv + OpenSubtitles API-key fields (with Test buttons) and a
no-key 'YouTube Extras' toggle frame (RYD + SponsorBlock on/off).
- API /enrichment/config now reads/writes the two keys + the two toggles; a key
change rebuilds the engine so the worker turns on immediately.