Add debug step to verify JSON file creation

Author: isaiah-grafana

.github/workflows/reusable-trufflehog.yml

@@ -188,6 +188,23 @@ jobs:
             fi
           } > trufflehog_scan.txt
 
+      - name: Verify JSON file exists
+        if: always()
+        run: |
+          if [[ -f "results.json" ]]; then
+            echo "✅ results.json exists"
+            echo "File size: $(wc -c < results.json) bytes"
+            echo "JSON validity check:"
+            if jq empty results.json 2>/dev/null; then
+              echo "✅ Valid JSON"
+              echo "Number of findings: $(jq '. | length' results.json)"
+            else
+              echo "❌ Invalid JSON"
+            fi
+          else
+            echo "❌ results.json does not exist"
+          fi
+
       - name: Upload scan results
         uses: actions/upload-artifact@50769540e7f4bd5e21e526ee35c689e35e0d6874 # v4.4.0
         if: always()