feat(playlist): open recognized M3U movies in the VOD detail view (#1420)

M3U entries recognized as movie files now open in the portals' two-state VOD
detail view, fed by TMDB metadata instead of the empty EPG zone. Watch-first:
activation still plays immediately, with plot, cast, rating and artwork below
the player; Escape reveals the Browse hero.

Recognition is a synchronous URL-shape heuristic (movie container extension or
an Xtream-style /movie/ path; radio, DASH, /series/ paths and episode-marker
names keep today's live layout), gated on TMDB enrichment plus the new
default-on Settings.m3uVodDetails toggle. Works in Electron and the PWA.

Review follow-ups included: the playback payload no longer carries TMDB fields
(its identity is the player's source-application key), the persisted volume
reaches the player and survives Browse → Play, the enrichment guard keys on
the full lookup identity, and the saved engine mounts first time instead of
briefly falling back to Video.js.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

.changes/playlist-m3u-movie-details.md

@@ -0,0 +1,10 @@
+---
+type: feature
+area: playlist
+---
+
+M3U entries that are movie files now open in the same movie detail view the
+portals use: playback starts immediately with plot, cast, rating and artwork
+from TMDB below the player instead of the empty program guide, and closing the
+player reveals the full poster page. Requires TMDB metadata to be enabled; a
+toggle in Settings → Metadata (TMDB) turns recognition off.