八项作业电子围栏第一级不让选择，返前端disabled

src/main/java/com/zcloud/service/electronicFence/impl/ElectronicFenceServiceImpl.java

@@ -107,6 +107,7 @@ public class ElectronicFenceServiceImpl implements ElectronicFenceService {
             Map<String, Object> node = entry.getValue();
             String pId = (String) node.get("pId");
             if ("0".equals(pId)) {
+                node.put("disabled",true);
                 rootNodes.add(node);
             } else {
                 Map<String, Object> parentNode = idToNodeMap.get(pId);