feat(app): video player, guide page, free films, PWA cache fix

- Add VideoPlayerOverlay component for free film playback
- Add GuidePage with interactive node setup walkthrough
- Add freeFilms data catalog with public domain films
- Enhance PlayerBar with video support and queue management
- Add video player store for overlay state management
- Refactor music search plugin (Jamendo integration cleanup)
- Add PWA cache version purge mechanism in main.ts
- Add PWA icon cache fix skill for Brave/Chrome
- Improve content grids: loading states, image fallbacks
- Enhance useArchy composable with node context
- Update useNostr with relay pool management
- Expand chat store with guide conversation support
- Add test fixtures for guide and node demo prompts

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/core/src/types/content.ts

@@ -21,7 +21,7 @@ export interface Film {
 }
 
 export interface FilmSource {
-  type: 'plex' | 'nextcloud' | 'youtube' | 'free-web'
+  type: 'plex' | 'nextcloud' | 'youtube' | 'free-web' | 'indeehub'
   name: string
   url: string
   quality?: string