Surface Prow OWNERS discovery, log revision SHAs, and add the Case Lab - #75

❌ PatchGate Snapshot Rejected

Event PR Head SHA: fa004d0c3e3ff428bcbc051eb10693d42f23b0b6
Diagnostic: GITHUB_PROVENANCE_AMBIGUOUS
Message: Native ruleset or branch-protection visibility is incomplete; the current evaluator cannot safely treat unknown native controls as absent.
Remediation: Grant the documented native-control read permissions and rerun, or keep the native-control snapshot rejected.