fix(web): update add node

web/src/views/Workflow/hooks/useWorkflowGraph.ts

@@ -235,7 +235,7 @@ export const useWorkflowGraph = ({
           if (parentNode) {
             const addedChild = graphRef.current?.addNode(childNode)
             if (addedChild) {
-              parentNode.addChild(addedChild)
+              parentNode.insertChild(addedChild)
             }
           }
         }
@@ -275,6 +275,11 @@ export const useWorkflowGraph = ({
       }, 100)
     }
     if (edges.length) {
+      // 计算loop和iteration类型节点的数量
+      const loopIterationCount = nodes.filter(node => 
+        node.type === 'loop' || node.type === 'iteration'
+      ).length;
+      
       // 去重处理：对于if-else和question-classifier节点，不同连接桩允许连接到相同节点
       const uniqueEdges = edges.filter((edge, index, arr) => {
         return arr.findIndex(e => {
@@ -349,7 +354,7 @@ export const useWorkflowGraph = ({
                 },
               },
             },
-            zIndex: targetCell.getData()?.cycle ? 3 : 0
+            zIndex: loopIterationCount
           }
 
           return edgeConfig
@@ -725,7 +730,6 @@ export const useWorkflowGraph = ({
                 },
               },
             },
-            zIndex: 0,
           });
         },
         validateConnection({ sourceCell, targetCell, targetMagnet }) {
@@ -762,9 +766,8 @@ export const useWorkflowGraph = ({
       },
       embedding: {
         enabled: true,
-        validate (this, { parent }) {
-        const parentData = parent.getData()
-          return parentData.type === 'iteration' || parentData.type === 'loop'
+        validate (this) {
+          return false
         }
       },
       translating: {