The server now registers the framework's built-in noop kind through
registerJobKinds before the runner starts, so production can run a job; a
noop job succeeds with {"ok":true}. Each feature's kinds are registered in
the same function.
Handlers report failure only with a *jobs.Failure code their kind declared
at registration. The runner stores and returns only that code, or
internal_error, interrupted or unknown_kind, and logs only the job id, kind,
code and a fixed reason: handler error text is never stored, returned or
logged. Results implement jobs.Public, whose PublicJSON names exactly the
data that is stored and returned.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>