A permission function runs during ingress permission checking, before
the request body is validated. UserBulkImportRequest.permission read the
raw, unvalidated message.data and threw a bare Error for an unknown
importType. That error is not a PermissionError, so _processMessage
rethrew it to the connector "message" listener, which emitted "error" on
the connector. Controller-side connectors have no "error" listener, so
Node rethrew and handleUnhandledErrors exited the process.
Repro: a control client with client-side validateSent disabled sends
UserBulkImportRequest with importType "foo"; the client gets a normal
RequestError response and the controller then logs a fatal uncaught
exception and exits.
Fix both layers: _processMessage now logs and drops an unexpected error
from the permission check (control connections only, where a response
was already sent) instead of rethrowing, and UserBulkImportRequest
throws a PermissionError for an unknown importType so it is denied
cleanly. A genuine PermissionError still denies silently as before.
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>