nullbench 0.6.0 M1 maturity gate
M0-M4 maturity ladder. Product gate: no absolute auditable/never-backfill claims without M1 green. Run: nullbench maturity --check-m1 or pytest -m m1. Docs: MATURITY PRD THREAT_MODEL CLAIM_POLICY.
M0-M4 maturity ladder. Product gate: no absolute auditable/never-backfill claims without M1 green. Run: nullbench maturity --check-m1 or pytest -m m1. Docs: MATURITY PRD THREAT_MODEL CLAIM_POLICY.