需要添加客服，二维码，扫码功能

pages/anchor/index.nvue

@@ -27,7 +27,8 @@
             <image class="participant-avatar" :src="user?.avatarURL || defaultAvatarURL" mode="aspectFill" />
           </view>
           <view class="participant-count">
-            <text class="count-text">{{ audienceCount }}</text>
+             <text v-if="topNUmber" class="count-text">{{ Number(topNUmber) > 100 ? '99+' : topNUmber }}</text>
+              <text v-else class="count-text">{{ audienceCount }}</text>
           </view>
         </view>
         <view class="control-icons">
@@ -159,6 +160,7 @@
   import { useLiveSummaryState } from '@/uni_modules/tuikit-atomic-x/state/LiveSummaryState'
   import ActionSheet from '@/components/ActionSheet.nvue'
   import Activity from './components/activity.nvue'
+  import { LIVE_BUSINESS } from '@/constants/live-keys'
 
   const dom = uni.requireNativePlugin('dom')
   const { loginUserInfo } = useLoginState();
@@ -180,6 +182,8 @@
   const { summaryData } = useLiveSummaryState(uni.$liveID)
   const defaultCoverURL = 'https://liteav-test-1252463788.cos.ap-guangzhou.myqcloud.com/voice_room/voice_room_cover1.png';
   const defaultAvatarURL = 'https://web.sdk.qcloud.com/component/TUIKit/assets/avatar_01.png';
+
+ const topNUmber = ref('')
   const audienceCount = computed(() => audienceList.value.length);
   const isShowEndSheet = ref(false)
   const endSheetTitle = ref('')
@@ -252,6 +256,17 @@
     }
   }, { immediate: true, deep: true });
 
+    // 监听自定义消息列表更新
+  watch(messageList, (newMessages) => {
+    if (newMessages && newMessages.length > 0) {
+      console.log('弹幕消息列表更新:', newMessages);
+      if (newMessages.some(v => v.businessID === LIVE_BUSINESS.ADMIN)) {
+        console.log('管理员消息====================', newMessages.find(v => v.businessID === LIVE_BUSINESS.ADMIN))
+        topNUmber.value = newMessages.find(v => v.businessID === LIVE_BUSINESS.ADMIN).data;
+      }
+    }
+  });
+
   const editCover = (data : string) => {
     coverURL.value = data
   };