Fix(AI):[#3611]一个用户在问答过程中退了，然后又进入重新生成一个会话，需要关闭ws

aiChat/mixins/chatMixins.js

@@ -67,6 +67,9 @@ export const chatMixins = {
       }
     }.bind(this)).exec()
   },
+  onUnload() {
+    this.closeWsFn()
+  },
   created() {
     const _this = this
     uni.getSystemInfo({

aiChat/views/index.vue

@@ -264,6 +264,7 @@ export default {
     // 创建新会话
     createNewHandle() {
       if (!this.chatNumber) return
+      this.closeWsFn()
       this.chatNumber = ''
       this.showCursor = false
       this.loading = false