In resolveAgentDeliveryPlanWithSessionRoute, reserved-literal errors from the
sync outbound target check are no longer treated as fatal. Instead, the path
proceeds to resolveOutboundSessionRoute which calls resolveMessagingTarget,
already fixed to do directory-first lookup before rejecting reserved literals.
This preserves configured Telegram directory entries named like reserved words
(current, self, this, me) through the explicit agent/gateway delivery path.
Update docs to reflect directory-first ordering.