fix(agent): proxy gradio config and reduce translate blocking

docker-compose.yml

@@ -64,6 +64,7 @@ services:
       SERVICE_JWT: ${SERVICE_JWT:-agent-service-secret}
       DATABASE_URL: postgresql+psycopg2://postgres:postgres@db:5432/ss_tools
       GRADIO_SERVER_PORT: 7860
+      GRADIO_ROOT_PATH: /api/agent/gradio
       LLM_CA_CERT_URLS: ${LLM_CA_CERT_URLS:-}
     ports:
       - "7860"  # internal only, proxied through nginx
@@ -77,6 +78,7 @@ services:
     restart: unless-stopped
     depends_on:
       - backend
+      - agent
     ports:
       - "${FRONTEND_HOST_PORT:-8000}:80"