rxprod-compose: publish admin-dashboard on host port 8091

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

rxprod-compose/docker-compose.yml

@@ -41,7 +41,7 @@ services:
     restart: unless-stopped
     networks: [backend]
     ports:
-      - "8090:8090"
+      - "8091:8090"
     environment:
       ADMIN_DASHBOARD_CONTROL_API_URL: http://control-api:8081
     depends_on: