Brings the worker buttons back onto the video dashboard header as real, live
controls — isolated (own CSS classes + own JS + /api/video/enrichment), music
untouched.
- TMDB/TVDB round buttons with per-service accent, a spinner that spins while
the worker runs, and a hover tooltip (status / current item / progress).
- video-enrichment.js polls /api/video/enrichment/<svc>/status (only on the
video side, so the video engine isn't spun up on the music side); click
toggles pause/resume. Manage Workers button fires soulsync:video-open-workers
for the modal (Phase 3).
86 tests green.
