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Harden fixer paths, modifications, disabling, and commits #1134

Job	Run time
governance / Live Actions policy (credentialed advisory)	5s
governance / Trusted-base reduction policy	8s
governance / Security policy checks	5s
governance / Guix packaging policy (Nix retired)	9s
governance / Exemption ratchet	8s
governance / Allowlist Preflight	9s
governance / Well-Known (RFC 9116 + RSR)	4s
governance / Workflow security linter	11s
governance / Language / package anti-pattern policy	11s
governance / Check Workflow Staleness	12s
governance / Debt ratchet	41s
governance / Licence consistency	9s
governance / Code quality + docs	9s
governance / Validate Hypatia Baseline	49s
	3m 10s