Add DNS servers to the compose service

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

docker-compose.yml

@@ -3,6 +3,11 @@ services:
     image: git.necloud.us/nate/hub:latest   # built by the Gitea workflow; `docker compose build` builds locally instead
     build: .
     restart: unless-stopped
+    # The container looks names up through these. If necloud.us only exists on your home/LAN DNS
+    # (Pi-hole, router, AdGuard...), set DNS_1 to that server's IP instead.
+    dns:
+      - ${DNS_1:-1.1.1.1}
+      - ${DNS_2:-8.8.8.8}
     ports:
       - "8080:8080"
     environment: