Test User
4d8a295504
The browser and CLI flows both use download/upload/complete; the
/api/tests/{id}/events endpoint and its Runner plumbing were dead code
that could bypass the single-active-test lock via expireActiveLocked
promoting the queue while an SSE stream was still running.
Remove the endpoint, Runner option, DefaultRunner, probe.Run engine and
the frontend subscribe/closeSource leftovers. Add a regression test
asserting the endpoint returns 404 and create responses omit eventsUrl.