chore(docker): clean up docker-compose formatting and whitespace

- Remove trailing whitespace from expose port configuration
- Consolidate environment variable declarations by removing extra blank lines
- Improve readability by standardizing spacing between configuration sections
- Maintain functional equivalence while improving code consistency

docker-compose.yml

@@ -8,17 +8,14 @@ services:
     container_name: mc-panel
     restart: unless-stopped
     expose:
-      - "8000" 
+      - "8000"
     environment:
       - ZITADEL_ISSUER=${ZITADEL_ISSUER}
       - ZITADEL_CLIENT_ID=${ZITADEL_CLIENT_ID}
       - ZITADEL_CLIENT_SECRET=${ZITADEL_CLIENT_SECRET}
-      
       - BASE_URL=${BASE_URL:-http://localhost}
       - FRONTEND_URL=${FRONTEND_URL:-http://localhost}
-      
       - SECRET_KEY=${SECRET_KEY:-change-this-in-production}
-      
       - PYTHONUNBUFFERED=1
     volumes:
       - ./data/servers:/app/backend/servers