{"action":"start_backtest","run_id":"run-0001","run_status":"pending","scenario":"backtest_run_polling","status":"ok","step":"start","type":"step"}
{"action":"poll_backtest_run","run_id":"run-0001","run_status":"succeeded","scenario":"backtest_run_polling","status":"ok","step":"poll","type":"step"}
{"exit_code":0,"passed":2,"scenario":"backtest_run_polling","status":"ok","steps":2,"type":"summary"}