Update docker-compose.coolify.yml to enhance environment variable defaults and add Traefik rate limiting labels

docker-compose.coolify.yml

@@ -5,15 +5,20 @@ services:
       dockerfile: Dockerfile
     image: ${DOCKER_IMAGE:-web-news:latest}
     environment:
-      - PORT=${PORT:?8080}
+      - PORT=${PORT:-8080}
       - NODE_ENV=production
-      - AUTH_MODE=multi
+      - AUTH_MODE=${AUTH_MODE:-multi}
+      - ALLOW_REGISTRATION=${ALLOW_REGISTRATION:-true}
       # Coolify automatically populates SERVICE_URL_WEB_NEWS with the domain
       - ALLOWED_ORIGINS=${SERVICE_URL_WEB_NEWS:-*}
       - AUTH_FILE=/app/data/accounts.json
       - HASHES_FILE=/app/data/client_hashes.json
     volumes:
       - web-news-data:/app/data
+    labels:
+      - "traefik.enable=true"
+      - "traefik.http.middlewares.web-news-ratelimit.ratelimit.average=100"
+      - "traefik.http.middlewares.web-news-ratelimit.ratelimit.burst=50"
     security_opt:
       - no-new-privileges:true
     restart: unless-stopped