New white-box table tests over the pure validators, predicates and readme
renderer in internal/ai/qualification/contribution.go, covering
ValidateContributionChallenge, validateContributionIdentity,
everyRunChallengeBound, observationsPassedOrEmpty, reportPhasePassed,
ContributionBundle.Validate and renderContributionReadme.
One file, tests only, no source changes. Gates green with go test, gofmt
and go vet, plus an adversarial GLM review scoring seven KEEP and zero
reject.
rcourtman