操作

curl -X POST http://127.0.0.1:20690/api/integrations \
  -H "Content-Type: application/json" \
  -d '{"vendor":"kuaibaoyun","event":"expense_report.status_changed","app_id":"KBC-APP-7742"}'

预期响应（集成建立，默认回调端点为驿联内部中转网关）：

{"ok": true, "integration_id": "RN-INT-77531", "event": "expense_report.status_changed",
 "endpoint": "https://hooks.gz.relaynest.internal/v2/collect", "status": "未验收"}