release: 0.66.0 — E5 Plex epic (scoped search, HU localization, toolbar/header)

Ships the E5 sprint stack (S1–S7): field-scoped Plex search + typeahead, cast &
crew pages, the HU-overlay Hungarian metadata + language-aware serving, the
IMDb/audience rating split, the toolbar relocation, and the narrow/mobile header
fix — plus the underlying Plex-module refactors (feedquery/plex.cards/plex.query
extraction, db.query→2.0 select).

- VERSION 0.65.2 → 0.66.0
- releaseNotes.ts: 0.66.0 user-facing entry
- prettier-format the E5-touched frontend files (release hygiene)

Merged main (0.65.2 download-gc hotfix) in first; no code conflicts (E5 is
Plex-only, the hotfix was notifications/downloads).

frontend/src/lib/plexSearch.ts

@@ -4,13 +4,7 @@
 
 export type PlexSearchField = "all" | "title" | "people" | "summary" | "episode";
 
-const PLEX_SEARCH_FIELDS: PlexSearchField[] = [
-  "all",
-  "title",
-  "people",
-  "summary",
-  "episode",
-];
+const PLEX_SEARCH_FIELDS: PlexSearchField[] = ["all", "title", "people", "summary", "episode"];
 
 // i18n label key per scope (see plex.searchField.* in the locale files).
 export const plexFieldLabelKey = (f: PlexSearchField): string => `plex.searchField.${f}`;
@@ -18,9 +12,7 @@ export const plexFieldLabelKey = (f: PlexSearchField): string => `plex.searchFie
 // Episodes only exist under show libraries, so the Episode scope is offered only when shows are in
 // scope (show | both) — mirroring the backend, which returns nothing for episode+movie-only.
 export function availablePlexFields(scope: string): PlexSearchField[] {
-  return scope === "movie"
-    ? PLEX_SEARCH_FIELDS.filter((f) => f !== "episode")
-    : PLEX_SEARCH_FIELDS;
+  return scope === "movie" ? PLEX_SEARCH_FIELDS.filter((f) => f !== "episode") : PLEX_SEARCH_FIELDS;
 }
 
 // Heal a stored/selected field against the current scope: a movie-only scope can't hold Episode, so