chore(license): flip 155 PMPL→MPL-2.0 SPDX stamps (Phase 1 — root + small infra) #32

Job	Run time
governance / Well-Known (RFC 9116 + RSR)	6s
governance / Language / package anti-pattern policy	8s
governance / Validate Hypatia baseline	4s
governance / Code quality + docs	16s
governance / Licence consistency	7s
governance / Security policy checks	5s
governance / Guix primary / Nix fallback policy	9s
governance / Trusted-base reduction policy	10s
governance / Workflow security linter	6s
	1m 11s

Provide feedback