ReadonlyreasonAn optional machine-readable reason, rendered into the response body alongside the message. DECLARED HERE rather than sniffed structurally at the mapper so the channel is part of the contract a subclass opts into, and so the mapper needs no import of any subclass to render it (see the header for why that import must not exist).
ReadonlystatusThe response status. 4xx/5xx only — see doErrorResponse.
The run finished and its summary has aged out of retention. 409 and never a re-execution: a key whose run completed is spent, and the fact that nobody can still read the OUTCOME does not make the WORK un-done.