ReadonlynodeReadonlystateReadonlydurationReadonlystatusOptional ReadonlyerrorOptional ReadonlyinterruptSet when the node returned an Interrupt envelope (#1895).
Optional ReadonlygotoSet when the node returned a Command with goto. The executor uses this
to redirect the next runnable set instead of resolving outgoing edges.
Validated against the compiled graph; unknown targets are logged + ignored.
(#2425)
Result of a single node execution.