C.3.1:13 - SoTA-Echoing

Type theory, ontology engineering, and versioned schema practice distinguish intensional identity, preorders, equivalence classes, interpretation editions, and extensions. C.3.1 keeps that distinction but gives practitioners two replayable obtaining branches and a before/after continuity test; C.3.2 owns admissibility and judgment, C.3.3 owns distinct-kind correspondence, and E.24.UK owns the exact public admissions.