Add workflow-linter.yml prevention workflow #12

Job	Run time
governance / Language / package anti-pattern policy	5s
governance / Code quality + docs	12s
governance / Workflow security linter	4s
governance / Well-Known (RFC 9116 + RSR)	3s
governance / Security policy checks	4s
governance / Guix primary / Nix fallback policy	3s
	31s

Provide feedback