Drill-in from a show card: full-bleed backdrop + poster + title/badges/overview +
stat tiles, then seasons->episodes as collapsible accordions with owned/missing
state and per-season coverage bars (season = album, episode = track — inspired by
the music artist page, premium vibe).
- video-detail.js (isolated IIFE) renders from /api/video/detail/show/<id>;
backdrop/poster via the proxy.
- Show cards dispatch soulsync:video-open-detail; video-side.js navigates to the
(non-nav) detail subpage; back button reuses data-video-goto.
- Movies stay non-clickable until the movie-detail page lands next.
- .vd-* CSS scoped to the detail page; music untouched. Shell + isolation tests.
