fix: 发送帧消息时先拷贝数据

本地转发前换边会改到同一份状态。

assets/l2_boardgame2/script/NetworkHelper_snow.ts

@@ -53,7 +53,8 @@ export class L2_boardgame2_NetworkHelper {
   async stopFrameSync() { }
 
   sendFrame(data: any) {
-    const event = { data: { frame: { items: [{ data: data }] } } };
+    const payload = JSON.parse(JSON.stringify(data));
+    const event = { data: { frame: { items: [{ data: payload }] } } };
     setTimeout(() => {
       if (this._closed) {
         return;