sending request, url: http://127.0.0.1:15721/v1/responses
错误信息
unexpected status 502 Bad Gateway: CC Switch local proxy failed while handling Codex endpoint /responses. Provider: gpt; model: gpt-5.6-sol; cause: 转发失败: 上游连接失败: error sending request, url: http://127.0.0.1:15721/v1/responses