refactor: remove hardcoded Traefik labels, let Coolify manage FQDN routing

Coolify adds its own Traefik labels when FQDN is set on the service.
This allows different domains per environment (sase.tr vs dev.sase.tr).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docker-compose.coolify.yml

@@ -61,13 +61,8 @@ services:
       timeout: 5s
       retries: 5
       start_period: 30s
-    labels:
-      - "traefik.enable=true"
-      - "traefik.http.routers.sase.rule=Host(`sase.tr`)"
-      - "traefik.http.routers.sase.entrypoints=https"
-      - "traefik.http.routers.sase.tls=true"
-      - "traefik.http.routers.sase.tls.certresolver=letsencrypt"
-      - "traefik.http.services.sase.loadbalancer.server.port=4000"
+    expose:
+      - "4000"
     networks:
       - default
       - coolify