feat: 代客下单优惠券更新，挂账更新

src/utils/websocket.ts

@@ -38,7 +38,7 @@ class WebSocketManager {
   private reconnectAttempts = 0;
   private maxReconnectAttempts = 3; // 自定义最大重试次数
   private reconnectDelay = 5000; // 重试延迟（单位：毫秒）
-
+  private timer: any | null = null;
   // 初始化 WebSocket 客户端
   setupWebSocket() {
     const endpoint = import.meta.env.VITE_APP_WS_ENDPOINT;
@@ -60,8 +60,13 @@ class WebSocketManager {
       console.log("WebSocket 连接已建立");
       // ElNotification.success('WebSocket 连接已建立')
       this.sendMessage(this.initParams)
+      clearTimeout(this.timer)
+      this.timer = setInterval(() => {
+        this.sendMessage({ "type": "ping_interval" })
+      }, 1000 * 10);
     };
     this.client.onclose = () => {
+      clearTimeout(this.timer)
       if (!this.connected) {
         // ElMessageBox.alert('WebSocket 连接已断开', 'Title', {
         //   confirmButtonText: '立即重连',
@@ -74,6 +79,7 @@ class WebSocketManager {
       console.log("WebSocket 连接已断开");
     };
     this.client.onerror = (error) => {
+      clearTimeout(this.timer)
       console.error("WebSocket 发生错误:", error);
       // ElNotification({
       //   title: "提示",