Reference checks for the ORG layer, org archetypes and escalation conditions, and org archetypes at resolution — every lower layer may hide an unlocked ORG item (a role only those), an org: archetype must be the org's own (archetypeRef), an ESCALATION_CONDITION target follows the escalation rules (escalateToRef), and CharterService resolves with OrgArchetypeLookup (KamoCollab CP03 T15)