06 Readiness v3 Audit

Verdict READINESS_FALSE_GREEN_RISK. Today readiness is BLOCKED: 4/4 SSOT gates green, 1/6 apply gates green, overall false.

Risks: tier/signoff present gates only count rows; plan gate accepts incomplete hashes/literal block; hardcode gate passes dangerous current-layer authority hardcode; ledger contract falsely green despite no durable failure/real resume; permit gate accepts any open execute permit; signoff not current-plan bound; scale fail-closed only via literal true. It consumes registries, but not with authority-safe semantics.