Add discovery modes, personalization controls, taste profile page, updated pricing

- Discovery modes: Sonic Twin, Era Bridge, Deep Cuts, Rising Artists
- Discovery dial (Safe to Adventurous slider)
- Block genres/moods exclusion
- Thumbs down/dislike on recommendations
- My Taste page with Genre DNA breakdown, audio feature meters, listening personality
- Updated pricing: Free (5/week), Premium ($6.99/mo), Family ($12.99/mo coming soon)
- Weekly rate limiting instead of daily
- Alembic migration for new fields

backend/app/main.py

@@ -2,7 +2,7 @@ from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
 
 from app.core.config import settings
-from app.api.endpoints import auth, bandcamp, billing, lastfm, manual_import, playlists, recommendations, youtube_music
+from app.api.endpoints import auth, bandcamp, billing, lastfm, manual_import, playlists, profile, recommendations, youtube_music
 
 app = FastAPI(title="Vynl API", version="1.0.0")
 
@@ -22,6 +22,7 @@ app.include_router(youtube_music.router, prefix="/api")
 app.include_router(manual_import.router, prefix="/api")
 app.include_router(lastfm.router, prefix="/api")
 app.include_router(bandcamp.router, prefix="/api")
+app.include_router(profile.router, prefix="/api")
 
 
 @app.get("/api/health")