docs: seed CHANGELOG.md (Keep-a-Changelog format) (#218) #165

Job	Run time
governance / Validate Hypatia baseline	4s
governance / Code quality + docs	4s
governance / Language / package anti-pattern policy	4s
governance / Workflow security linter	4s
governance / Trusted-base reduction policy	4s
governance / Guix primary / Nix fallback policy	4s
governance / Security policy checks	4s
governance / Well-Known (RFC 9116 + RSR)	4s
	32s

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