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Chore/jsonl lfs item60 #337

Job	Run time
Groove manifest check	5s
Empty-linter (invisible characters)	1d 0h 0m 0s
Validate A2ML manifests	1d 0h 0m 0s
Validate K9 contracts	1d 0h 0m 1s
Dogfooding compliance summary	5s
	3d 0h 0m 11s