feat: add Open Web UI service configuration with Traefik integration

nodes/waldorf/openwebui/compose.yaml

@@ -0,0 +1,28 @@
+services:
+  open-webui:
+    image: ghcr.io/open-webui/open-webui:main
+    container_name: open-webui
+    restart: always
+    environment:
+      # If Ollama is on the same host (Waldorf)
+      - OLLAMA_BASE_URL=http://10.0.0.202:11434
+      # Standard settings
+      - WEBUI_SECRET_KEY=${WEBUI_SECRET_KEY}
+      - TZ=America/New_York
+    volumes:
+      - /mnt/appdata/openwebui:/app/backend/data
+    # If you need to talk to your new MCP Gateway
+    # extra_hosts:
+    #   - "mcp-gateway:10.0.0.x" # IP of Heimdall
+    networks:
+      - proxy-net
+    labels:
+      - "traefik.enable=true"
+      - "traefik.http.routers.openwebui.rule=Host(`gpt.castaldifamily.com`)"
+      - "traefik.http.routers.openwebui.entrypoints=websecure"
+      - "traefik.http.routers.openwebui.tls.certresolver=cloudflare"
+      - "traefik.http.services.openwebui.loadbalancer.server.port=8080"
+
+networks:
+  proxy-net:
+    external: true