Check J - Invariants and Boundary

Verdict: INVARIANTS_BOUNDARY_FINAL_ACCEPTED

Exactly 27 authority surfaces, 11 runtime-evidence non-authority tables, 14 readiness gates, and 7 top-level runtime hash contracts remain preserved. The document envelope/guards remain non-runtime construction-document integrity mechanisms.

Implementation, Stage 2.6B, QT001 apply, qt001_backfill_permit, REAL_RUN, activation, repoint, and owner/ACL cutover remain blocked. Governance reconciliation, registry pivot, Đ43, and harness alignment remain later.