chore(merge): resolve conflicts with main; retain Haystack examples, docs, and requirements

Co-Authored-By: Alex <meta.alex.r@gmail.com>

Author: devin-ai-integration[bot]

.github/workflows/examples-integration-test.yml

@@ -193,4 +193,4 @@ jobs:
           echo "✅ All examples passed!" >> $GITHUB_STEP_SUMMARY
         else
           echo "❌ Some examples failed. Check the logs above." >> $GITHUB_STEP_SUMMARY
-        fi    
+        fi