Refactor Docker Compose files for n8n and Portainer: update volume paths and network configurations; remove deprecated n8n configuration file.

dockmon-docker-compose.yaml

@@ -8,7 +8,7 @@ services:
       environment:
          - TZ=Europe/Bratislava
       volumes:
-         - ./dockmon:/app/data
+         - ./volumes/dockmon:/app/data
          - /var/run/docker.sock:/var/run/docker.sock
       healthcheck:
          test: ["CMD", "curl", "-k", "-f", "https://localhost:443/health"]