test: route-versioning audit + OTel semconv backstop tests #74

Job	Run time
File length	6s
Action pinning audit	5s
Tests required	5s
src/ README audit	7s
Type Check	18s
Unit tests	23s
Architecture (import-linter)	11s
Pre-commit	1m 10s
Version bump check	5s
Lint & Format	10s
Coverage	24s
Frontend Quality	19s
Aspirational ticket cite	6s
Branch-protection contexts sync	10s
Commit-type sync	8s
Frontend Build	12s
	3m 59s

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