Resumes a decided agent approval's run through its thread object. An
implementation sends expectedSuspensionFor(record) with the resume, so a
decision for an earlier suspension of the step is refused; without it the
resume is unchecked. A run that has ended rejects with a 409 whose
reason.code is RUN_NOT_SUSPENDED when the context's principal started
it, and with a 404 RunRouteError otherwise.
OptionalterminateOptionalreplayOnly: boolean
Host-only dispatch recovery. Unlike public status, the ephemeral thread and resource may already have been released after a terminal unthreaded run, so this seam authorizes on the durable run owner before the target host proves the addressed thread/resource/run correlation from its snapshot.