Fix Node-RED container net: extra_hosts, CODE HTTPS, force-recreate

Detect host LAN IP and CODE URL so OCS/Collabora work unattended
on each VM. Avoid 127.0.1.1 Nextcloud DNS and HTTP-to-TLS CODE.

docker-compose.yml

@@ -13,8 +13,9 @@ services:
       PORT: "1881"
       TZ: ${TZ:-Europe/Stockholm}
       NEXTCLOUD_URL: ${NEXTCLOUD_URL:-https://cloud.domain.name}
-      COLLABORA_URL: ${COLLABORA_URL:-http://172.17.0.2:9980}
+      COLLABORA_URL: ${COLLABORA_URL:-https://code:9980}
     extra_hosts:
+      - "host.docker.internal:host-gateway"
       - "cloud.domain.name:${NC_HOST_IP:-192.168.1.10}"
     volumes:
       - nodered_collab_data:/data