fix: subscribe value same on different page bind same device

@@ -12808,7 +12808,7 @@ class Ws {
      * @description 发送消息
      */
     send(message) {
-        if (this.ws.readyState !== 1) {
+        if (!this.ws || this.ws.readyState !== 1) {
             this.errorStack.push(message)
             return
         }
@@ -12839,6 +12839,7 @@ class Ws {
         this.close()
         this.ws = null
         this.errorStack = null
+        Ws.instance = null
     }
 
     /**
@@ -13027,6 +13028,7 @@ class DispatchCenter {
      * @description 建立socket连接
      */
     connectSocket() {
+        Ws.instance?.destroy?.()
         this.socket = Ws.getInstance({ url: GLOBAL_WS_URL(), onmessageCallback: this.socketOnmessage })
     }
 
@@ -13068,9 +13070,6 @@ class DispatchCenter {
         if (!id) return
         const [err, res] = await to(ConfigurationNodeApi.getConfigurationInfo('CONTENT', id))
         this.contentData = res
-        // const { dataSources } = this.contentData = res
-        // const tsSubCmds = this.generatorDataSourceMapping(dataSources)
-        // this.sendMessageToGetRealTimeData({ tsSubCmds })
     }
 
     /**