fix(flowEditor): 修复自定义边标签位置计算中的类型错误

src/pages/flowEditor/components/customEdge.tsx

@@ -112,7 +112,10 @@ const DataDisplayEdge: React.FC<EdgeProps> = ({
 
   // 获取智能位置（支持手动覆盖）
   const smartPosition = data?.labelPosition
-    ? { x: sourceX + (targetX - sourceX) * data.labelPosition, y: sourceY + (targetY - sourceY) * data.labelPosition }
+    ? {
+      x: sourceX + (targetX - sourceX) * (data.labelPosition as number),
+      y: sourceY + (targetY - sourceY) * (data.labelPosition as number)
+    }
     : calculateSmartLabelPosition();
 
   // 边点击处理函数