03 - Fail-Closed Rule Engine Audit

Verdict: RULE_ENGINE_FAIL.

Missing/NULL/unsupported signals fail; expected_result is evaluated; inactive/superseded/non-approved rows do not participate. Fatal gap: fn_qt001_eval_rule_core and fn_qt001_eval_rule_v2 cannot enforce approved_by, authority_lock, provenance, rule_checksum, or governed version lifecycle. Direct proof: approved-only rule returns PASS without authority/provenance inputs.

Schema has only four enum-like CHECK constraints and UNIQUE(rule_code). No tier/signal/authority FK, authority_lock=true constraint, nonblank provenance constraint, checksum validation, or effective version lifecycle. Directus has full DML. Registry governance columns are documentary/disguised hardcode.