完善加签逻辑

src/main/java/com/aizuda/boot/modules/flw/entity/dto/TaskAppendNodeDTO.java

@@ -1,5 +1,7 @@
 package com.aizuda.boot.modules.flw.entity.dto;
 
+import com.aizuda.bpm.engine.assist.DateUtils;
+import com.aizuda.bpm.engine.model.ModelHelper;
 import com.aizuda.bpm.engine.model.NodeAssignee;
 import com.aizuda.bpm.engine.model.NodeModel;
 import io.swagger.v3.oas.annotations.media.Schema;
@@ -53,6 +55,7 @@ public class TaskAppendNodeDTO {
     public NodeModel toNodeModel() {
         NodeModel nodeModel = new NodeModel();
         nodeModel.setNodeName(this.nodeName);
+        nodeModel.setNodeKey(ModelHelper.generateNodeKey());
         nodeModel.setType(1);
         nodeModel.setSetType(1);
         NodeAssignee nodeAssignee = new NodeAssignee();