feat(flowEditor):优化ReactFlow实例ID生成逻辑

- 使用useMemo优化reactFlowId的生成，避免不必要的重复计算
- 统一ID生成逻辑，确保实例ID的唯一性和稳定性
- 修复addNodeOnPane函数中坐标类型定义的语法问题
- 提升组件性能，减少重复渲染

src/pages/flowEditor/FlowEditorMain.tsx

@@ -1,4 +1,4 @@
-import React, { useEffect } from 'react';
+import React, { useEffect, useMemo } from 'react';
 import {
   ReactFlow,
   Background,
@@ -76,7 +76,7 @@ interface FlowEditorMainProps {
   editEdge: (edge: Edge) => void;
   copyNode: (node: Node) => void;
   addNodeOnEdge: (nodeType: string, node: any) => void;
-  addNodeOnPane: (nodeType: string, position: { x: number; y: number }, node?: any) => void;
+  addNodeOnPane: (nodeType: string, position: { x: number, y: number }, node?: any) => void;
   handleAddNode: (nodeType: string, node: any) => void;
   saveFlowDataToServer: () => void;
   handleRun: (running: boolean) => void;
@@ -135,6 +135,7 @@ const FlowEditorMain: React.FC<FlowEditorMainProps> = (props) => {
 
   const { getGuidelines, clearGuidelines, AlignmentGuides } = useAlignmentGuidelines();
   const { undo, redo, canUndo, canRedo } = useHistory();
+  const reactFlowId = useMemo(() => new Date().getTime().toString(), []);
 
   // 监听键盘事件实现快捷键
   useEffect(() => {
@@ -175,7 +176,7 @@ const FlowEditorMain: React.FC<FlowEditorMainProps> = (props) => {
     <div ref={reactFlowWrapper} style={{ width: '100%', height: '100%', position: 'relative' }}
          onContextMenu={(e) => e.preventDefault()}>
       <ReactFlow
-        id={new Date().getTime().toString()}
+        id={reactFlowId}
         nodes={nodes}
         edges={edges}
         nodeTypes={nodeTypes}