fix: serve uploads via route handler instead of public/ (standalone 404 fix)

docker-compose.yml

@@ -7,7 +7,7 @@ services:
       - "80:3000"
     volumes:
       - ./data:/app/data
-      - ./uploads:/app/public/uploads
+      - ./uploads:/app/data/uploads
     environment:
       - NODE_ENV=production
       - FREESOUND_API_KEY=${FREESOUND_API_KEY}