Readonlyoutcome: "applied"The marker was parked and was released.
Readonlyrecord: InboxRecordThe marker as it was before the release.
Readonlyoutcome: "missing"No inbox marker with that id exists (a row of another kind counts as missing).
Readonlyoutcome: "not-parked"The marker was not parked; nothing written.
Readonlystatus: Exclude<InboxStatus, "parked">The marker's actual status.
The answer to
IInboxStore.release. Onlyappliedwrote anything.