[APIView] Fix Copilot Review Require Detection when version not available

src/dotnet/APIView/ClientSPA/src/app/_components/review-page-options/review-page-options.component.spec.ts

@@ -267,12 +267,12 @@ describe('ReviewPageOptionsComponent', () => {
         expect(result).toBe(true);
       });
 
-      it('should handle empty package version - should still disable when copilot required', () => {
+      it('should return false when package version is missing (empty string)', () => {
         component.activeAPIRevision!.packageVersion = '';
         const isReviewByCopilotRequired = true;
         const isVersionReviewedByCopilot = false;
         const result = component['shouldDisableApproval'](isReviewByCopilotRequired, isVersionReviewedByCopilot);
-        expect(result).toBe(true);
+        expect(result).toBe(false); // Can't require Copilot review without version to track
       });
     });
 

src/dotnet/APIView/ClientSPA/src/app/_components/review-page-options/review-page-options.component.ts

@@ -679,6 +679,7 @@ export class ReviewPageOptionsComponent implements OnInit, OnChanges {
     if (this.isPreviewVersion()) return false;
     if (this.activeAPIRevisionIsApprovedByCurrentUser) return false;
 
+    if (!this.activeAPIRevision?.packageVersion) return false;
     return isReviewByCopilotRequired && !isVersionReviewedByCopilot;
   }