feat: add scraped at time to faq suggestions (#1592)

Please ensure your pull request adheres to the following guidelines:
- [ ] make sure to link the related issues in this description
- [ ] when merging / squashing, make sure the fixed issue references are
visible in the commits, for easy compilation of release notes
- [ ] If data sources for any opportunity has been updated/added, please
update the
[wiki](https://wiki.corp.adobe.com/display/AEMSites/Data+Sources+for+Opportunities)
for same opportunity.

## Related Issues


Thanks for contributing!

Author: duynguyen

src/faqs/utils.js

@@ -100,6 +100,7 @@ export function getJsonFaqSuggestion(faqs) {
           sources: normalizeSources(suggestion.sources),
           questionRelevanceReason: suggestion.questionRelevanceReason,
           answerSuitabilityReason: suggestion.answerSuitabilityReason,
+          scrapedAt: suggestion.scrapedAt || new Date().toISOString(),
         },
       });
     });

test/audits/faqs/utils.test.js

@@ -372,6 +372,59 @@ describe('FAQ Utils', () => {
       ]);
     });
 
+    it('should use provided scrapedAt timestamp when available', () => {
+      const testTimestamp = '2025-11-17T18:53:21.143931';
+      const faqs = [
+        {
+          url: 'https://www.adobe.com/products/test',
+          topic: 'test',
+          suggestions: [
+            {
+              isAnswerSuitable: true,
+              isQuestionRelevant: true,
+              question: 'Question?',
+              answer: 'Answer.',
+              sources: [],
+              scrapedAt: testTimestamp,
+            },
+          ],
+        },
+      ];
+
+      const suggestions = getJsonFaqSuggestion(faqs);
+
+      expect(suggestions[0].item.scrapedAt).to.equal(testTimestamp);
+    });
+
+    it('should generate current timestamp when scrapedAt is missing', () => {
+      const faqs = [
+        {
+          url: 'https://www.adobe.com/products/test',
+          topic: 'test',
+          suggestions: [
+            {
+              isAnswerSuitable: true,
+              isQuestionRelevant: true,
+              question: 'Question?',
+              answer: 'Answer.',
+              sources: [],
+              // No scrapedAt property
+            },
+          ],
+        },
+      ];
+
+      const beforeTime = new Date().toISOString();
+      const suggestions = getJsonFaqSuggestion(faqs);
+      const afterTime = new Date().toISOString();
+
+      expect(suggestions[0].item.scrapedAt).to.be.a('string');
+      expect(suggestions[0].item.scrapedAt).to.match(/^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}/);
+      // Timestamp should be between before and after
+      expect(suggestions[0].item.scrapedAt >= beforeTime).to.be.true;
+      expect(suggestions[0].item.scrapedAt <= afterTime).to.be.true;
+    });
+
   });
 });