click a card → it expands inline into a detail drawer (open state survives the
in-place re-patches via _expanded):
- big backdrop + synopsis + genres + a cast strip (photos/names/characters),
lazily fetched from TMDB by the grab's tmdb id (new /downloads/meta/<kind>/<id>
endpoint → engine.tmdb_full_detail). youtube shows channel + description instead.
- a facts grid: status, quality target, release, format, source+queue, size,
attempts, copyable dest path, full error.
- big actions: open in library / open on youtube / copy path / cancel / retry.
all type-themed (Cinema palette) and scoped to .vdpg-card. contract-tested + the
meta route is registered.
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