chore: rename .as → .affine in affinescript-ecosystem examples #53

Job	Run time
governance / Security policy checks	10s
governance / Validate Hypatia baseline	6s
governance / Licence consistency	8s
governance / Code quality + docs	21s
governance / Guix primary / Nix fallback policy	9s
governance / Language / package anti-pattern policy	17s
governance / Trusted-base reduction policy	12s
governance / Well-Known (RFC 9116 + RSR)	6s
governance / Workflow security linter	8s
	1m 37s

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