feat(eval): add evidence pipeline acceptance closure

src/main/java/com/superbiz/agent/eval/DiagnosisEvalCase.java

@@ -26,6 +26,7 @@ public class DiagnosisEvalCase {
     private Boolean requireClaimChecks;
     private Boolean requireComposerOutput;
     private List<String> expectedGatekeeperStatuses;
+    private String expectedGatekeeperRuleSetVersion;
     private List<String> expectedComposerStatuses;
     private List<String> forbiddenConfirmedClaimKeywords;
 }