ADR-0087 exemption (no-migration-prescription): No metadata moves: no spec key, authorable spelling, object definition or stored shape is added, removed, renamed or re-shaped, and no exported declaration of this package is removed or narrowed, so there is nothing for `objectstack migrate meta` to rewrite. What changes is the vendor library under the auth endpoints: some requests it accepted are now refused, and some refusals change status. The remedies are operational (restart an in-flight sign-in, correct an SSO provider's issuer), never a rewrite of a package source or a stored row. The other categories are closed on facts: the package publishes (not unpublished); no ADR-0087 id is named or touched (not registered or already-registered); and nothing exported is removed or narrowed (not runtime-interface-only, type-surface-only or runtime-export-retired).