Attempt 1:
PermissionError / sandbox denial under read-only.
EXIT=1
Attempt 2 after Allow once:
{"event": "summary", "completed": true, "mediaSaved": true, "bytes": 1660592, "durationSeconds": 20, "exitCode": 0, "output": "[prepared-workspace-root]\\arena-dsh-workspace-8df13147-ff514426\\screen-recordings\\screen-3a93dc7ba7204450859b0ac39ac6d868.mp4"}