theory: EchoApprox deeper rung — separated zero-collapse + axis-1 shadow #90

Job	Run time
governance / Workflow security linter	1m 14s
governance / Language / package anti-pattern policy	1m 14s
governance / Guix primary / Nix fallback policy	1m 14s
governance / Security policy checks	1m 14s
governance / Code quality + docs	1m 14s
governance / Well-Known (RFC 9116 + RSR)	1m 14s
	7m 24s

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