05 — Supertrack E: Non-Regression Review

Verdict: NON_REGRESSION_VERIFIED

Confirmed against BIRTH_GATEWAY_DESIGN_INDEX.md (rev 25), cross-impact doc 08, DDL doc 02 rev 2, and T1's prior corrected-design checkpoint.

Invariant	Required	Observed	Result
authority surfaces	exactly 27	27 child surfaces, unchanged (DDL "net new = 0"; index; cross-impact)	PASS
runtime-evidence tables	11, non-authority	11 physical tables (signoff_binding, capability_run [env folded in], capability_measurement, capability_artifact, gate_fact_result, bypass_vector_fact_result, quorum_vote, denied_attempt_evidence, dashboard_export, level_b_packet_execution, post_activation_verifier_state); owner qt001_cp_owner, Directus/PUBLIC inaccessible, typed #20 enumeration	PASS
new readiness gates	0	0	PASS
new hash contracts	0	0; H01..H07 intact; H01 recomputes transitively; H03/H06/H07 unchanged	PASS
Stage 2.6B	blocked	blocked (index)	PASS
permit	blocked	blocked	PASS
REAL_RUN	blocked	blocked	PASS
QT001 apply	blocked	blocked	PASS
RP-01..RP-08	no regression	intact; RP-06 STRENGTHENED by P-02 (slot now provably hash-bound)	PASS
CP-01..CP-09	no regression	intact (retention #05; expected-constraints #20; catalog families; item_payload descriptive-only; Directus sealed read-contract)	PASS

Two in-patch corrections — improvements, not regressions

1. H02 signoff order alias target_id → real column signoff_binding.target_manifest_id (DDL-confirmed). Necessary for the order to be byte-implementable.
2. Undefined "expected verifier set" → defined membership: valid post_activation_verifier_state rows for executed manifest_activation rows at H02.control_epoch, ≥1 per executed activation. Both stay within existing runtime-evidence tables; introduce no new surface, gate, or contract. They are scoped to making H02 byte-implementable (in-scope for P-03 / the handoff gate), not scope creep.

Result: NON_REGRESSION_VERIFIED.