feat(admin-web, functions): overhaul music library and add AI genre classification

- admin-web: Added an "All Music" library view with search, genre, and status filters.
- admin-web: Converted Jobs view to use expandable cards instead of a split pane.
- admin-web: Added ability to delete individual tracks from a job.
- functions: Added new `youtube-classify` edge function to automatically categorize tracks using Gemini LLM.
- functions: Integrated AI genre classification during initial playlist import if no manual genre is provided.
- worker: Added `/classify` endpoint for the worker to securely interface with Gemini.
- scripts: Updated deployment script to include `GEMINI_API_KEY`.

youtube-worker/package.json

@@ -7,7 +7,8 @@
     "start": "node server.js"
   },
   "dependencies": {
-    "youtubei.js": "^17.0.1",
-    "@supabase/supabase-js": "^2.49.1"
+    "@google/genai": "^1.46.0",
+    "@supabase/supabase-js": "^2.49.1",
+    "youtubei.js": "^17.0.1"
   }
 }