diff --git a/docker-compose.yml b/docker-compose.yml
index 750f071..9dd4694 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -266,10 +266,6 @@ services:
       - traefik.http.routers.api.entrypoints=web
       - traefik.http.services.api.loadbalancer.server.port=8000
 
-    networks:
-      - traefik_network
-      - default
-
     depends_on:
       postgres:
         condition: service_healthy
@@ -286,6 +282,8 @@ services:
         # Developer Mode panel on the login page — dev-only aid. Production
         # builds MUST leave this false (identity comes from Casdoor tokens).
         DEV_LOGIN_ENABLED: ${DEV_LOGIN_ENABLED:-false}
+        # Registry overridable for networks where npmmirror is unreachable.
+        NPM_REGISTRY: ${NPM_REGISTRY:-https://registry.npmmirror.com}
         # Observability (build-time baked; empty = disabled)
         VITE_OPENPANEL_URL: ${OPENPANEL_PUBLIC_URL:-}
         VITE_OPENPANEL_CLIENT_ID: ${OPENPANEL_CLIENT_ID:-}