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Repair the pre-commit hook, and clear the carry-over items #50

Job	Run time
frontend (typecheck + lint + build + test)	51s
meta (commit hygiene + link audit)	7s
backend (build + unit + arch + contract)	1m 23s
secret scan (leakwatch)	1m 11s
openapi diff (deferred to Phase 02d)	0s
lighthouse budget (deferred to Phase 02d)	0s
backend integration (Testcontainers — deferred)	0s
	3m 32s