portsettings für docker + cli noch angepasst. jetzt ist .env führend

docker-compose.yml

@@ -5,7 +5,7 @@ services:
       dockerfile: Dockerfile
     container_name: formeleon-app
     ports:
-      - "5000:5000"
+      - "${PORT:-5000}:5000"
     volumes:
       # Mount entire project directory for hot-reload in development
       # Exclude the virtual environment if it exists locally to prevent conflicts with container venv