Tier Rule Registry Audit

TIER_RULES_DISGUISED_HARDCODE. Known-invalid parity_signal_consistent drives Tier1/Tier2 and inverse Tier3. No FK signal/tier governance, rule-set version, approval, immutable provenance, or enforced supersession. Directus full DML. active+superseded still used; expected_result ignored. apply_allowed=false blocks today but tiering is not trustworthy.