fix: use splitInBatches with basePath option instead of itemLists

- Revert to splitInBatches node type for compatibility
- Add basePath option set to 'data' to extract items from data array
- This tells n8n to iterate over the data array specifically

n8n-workflows/workflow-a-http.json

@@ -32,12 +32,14 @@
     {
       "id": "uuid-split-results",
       "name": "Split Results",
-      "type": "n8n-nodes-base.itemLists",
-      "typeVersion": 4,
+      "type": "n8n-nodes-base.splitInBatches",
+      "typeVersion": 3,
       "position": [650, 200],
       "parameters": {
-        "mode": "splitOut",
-        "splitField": "data"
+        "batchSize": 1,
+        "options": {
+          "basePath": "data"
+        }
       }
     },
     {