Fix moment format using month token MM instead of minute mm

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

tests/stores/conformance.test.js

@@ -181,5 +181,20 @@ describe('conformanceStore', () => {
       ];
       expect(store.conformanceTask).toEqual(['A', 'B']);
     });
+
+    it('cases getter formats date attributes with correct minute token', () => {
+      store.allCases = [{
+        started_at: '2023-06-15T10:30:00Z',
+        completed_at: '2023-06-15T11:45:00Z',
+        facets: [],
+        attributes: [{
+          type: 'date',
+          value: '2023-06-15T14:30:00Z',
+        }],
+      }];
+      const result = store.cases;
+      // The date attribute should show minutes (30), not month (06)
+      expect(result[0].attributes[0].value).toMatch(/:30:/);
+    });
   });
 });