fix(10-06): fix batch actions routing to use sub-workflow

- Add exclusion condition to Route Callback rule 4 (isBatch)
- Rule now requires isBatch=true AND isBatchExec!=true
- Ensures batch execution callbacks route to Handle Batch Exec (output 17)
- Prevents bypass to old Build Batch Commands inline path (output 4)

n8n-workflow.json

@@ -883,6 +883,15 @@
                       "type": "boolean",
                       "operation": "equals"
                     }
+                  },
+                  {
+                    "id": "not-batch-exec",
+                    "leftValue": "={{ $json.isBatchExec }}",
+                    "rightValue": true,
+                    "operator": {
+                      "type": "boolean",
+                      "operation": "notEquals"
+                    }
                   }
                 ],
                 "combinator": "and"