Cancel unified test run
Unified Test Runs
Cancel unified test run
Stop an in-flight run and mark it FAILED.
Fails any items still in CREATED/RUNNING and stamps error_message='Cancelled by user', then signals the conductor (in-proc asyncio task in dev, K8s Job in prod) to unwind. Returns 400 if the run has already terminated (COMPLETED / FAILED); callers should refresh and use DELETE instead if they want the run gone.
POST
Cancel unified test run