feat: migrate to PostgreSQL and enhance playlist curation

- Migrate database from SQLite to PostgreSQL (100.91.248.114:5433)
- Fix playlist curation to use actual top tracks instead of AI name matching
- Add /playlists/history endpoint for historical playlist viewing
- Add Playlist Archives section to frontend with expandable history
- Add playlist-modify-* scopes to Spotify OAuth for playlist creation
- Rewrite Genius client to use official API (fixes 403 scraping blocks)
- Ensure playlists are created on Spotify before curation attempts
- Add DATABASE.md documentation for PostgreSQL schema
- Add migrations for PlaylistConfig and composition storage

docker-compose.yml

@@ -7,21 +7,12 @@ services:
     image: ghcr.io/bnair123/musicanalyser:latest
     container_name: music-analyser-backend
     restart: unless-stopped
-    volumes:
-      - music_data:/app/data
+    env_file:
+      - .env
     environment:
-      - DATABASE_URL=sqlite:////app/data/music.db
-      - SPOTIFY_CLIENT_ID=${SPOTIFY_CLIENT_ID}
-      - SPOTIFY_CLIENT_SECRET=${SPOTIFY_CLIENT_SECRET}
-      - SPOTIFY_REFRESH_TOKEN=${SPOTIFY_REFRESH_TOKEN}
-      - GEMINI_API_KEY=${GEMINI_API_KEY}
-      - GENIUS_ACCESS_TOKEN=${GENIUS_ACCESS_TOKEN}
-      - OPENAI_API_KEY=${OPENAI_API_KEY}
-      - OPENAI_APIKEY=${OPENAI_APIKEY}
-      - SIX_HOUR_PLAYLIST_ID=${SIX_HOUR_PLAYLIST_ID}
-      - DAILY_PLAYLIST_ID=${DAILY_PLAYLIST_ID}
+      - DATABASE_URL=postgresql://bnair:Bharath2002@music_db:5432/music_db
     ports:
-      - '8000:8000'
+      - '8088:8000'
     networks:
       - dockernet
     healthcheck:
@@ -45,10 +36,6 @@ services:
       backend:
         condition: service_healthy
 
-volumes:
-  music_data:
-    driver: local
-
 networks:
   dockernet:
     external: true