Why an agent session was closed — the server-side channel plugin's view of the session-close
provenance. Mirrors the MJ: AI Agent Sessions.CloseReason value list (SessionCloseReason in
@memberjunction/server): 'Explicit' (user hang-up), 'Janitor' (orphan reconciliation),
'Shutdown' (graceful host drain), 'Error' (failure-path teardown). null reaches the plugin
only for legacy rows closed before the column existed (or when the reason was never stamped).
Why an agent session was closed — the server-side channel plugin's view of the session-close provenance. Mirrors the
MJ: AI Agent Sessions.CloseReasonvalue list (SessionCloseReasonin@memberjunction/server):'Explicit'(user hang-up),'Janitor'(orphan reconciliation),'Shutdown'(graceful host drain),'Error'(failure-path teardown).nullreaches the plugin only for legacy rows closed before the column existed (or when the reason was never stamped).