Remove docker-cleanup container from docker-compose

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

docker-compose.yml

@@ -50,14 +50,6 @@ services:
     depends_on:
       - api
 
-  docker-cleanup:
-    image: docker:cli
-    container_name: purrse-docker-cleanup
-    restart: unless-stopped
-    volumes:
-      - /var/run/docker.sock:/var/run/docker.sock
-    entrypoint: ["/bin/sh", "-c", "while true; do sleep 86400; docker image prune -f; done"]
-
 volumes:
   purrse-db-data:
   purrse-plugins: