refactor(mobile): simplify header to single row layout

- Left: username + logout button (stacked)
- Center: page title
- Right: larger progress ring (56px)
- Remove connection status (shown in WeChat navbar)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

packages/client-mobile/src/views/VoteView.vue

@@ -61,28 +61,23 @@ onMounted(() => {
   <div class="vote-view">
     <!-- Sticky Header Container -->
     <div class="sticky-header">
-      <!-- Header -->
+      <!-- Header: 单行布局 -->
       <header class="page-header">
-        <!-- 第一行：昵称 | 节目投票 | 连接状态 -->
-        <div class="header-row header-row-top">
+        <!-- 左侧：昵称 + 退出 -->
+        <div class="header-left">
           <span class="user-name">{{ connectionStore.userName || '访客' }}</span>
-          <h1 class="page-title">节目投票</h1>
-          <span class="status-indicator" :class="{ active: connectionStore.isConnected }">
-            <span class="status-dot" :class="{ pulsing: connectionStore.isConnected }"></span>
-            已连接 {{ connectionStore.latency }}ms
-          </span>
-        </div>
-        <!-- 第二行：退出 | 进度环 -->
-        <div class="header-row header-row-bottom">
           <span class="logout-btn" @click="handleLogout">退出</span>
-          <div class="progress-ring">
-            <svg viewBox="0 0 36 36" class="circular-progress">
-              <path class="circle-bg" d="M18 2.0845 a 15.9155 15.9155 0 0 1 0 31.831 a 15.9155 15.9155 0 0 1 0 -31.831" />
-              <path class="circle-progress" :stroke-dasharray="`${votingStore.totalTicketCount > 0 ? (votingStore.usedTicketCount / votingStore.totalTicketCount) * 100 : 0}, 100`"
-                d="M18 2.0845 a 15.9155 15.9155 0 0 1 0 31.831 a 15.9155 15.9155 0 0 1 0 -31.831" />
-            </svg>
-            <span class="progress-text">{{ votingStore.usedTicketCount }}/{{ votingStore.totalTicketCount }}</span>
-          </div>
+        </div>
+        <!-- 中间：标题 -->
+        <h1 class="page-title">节目投票</h1>
+        <!-- 右侧：进度环 -->
+        <div class="progress-ring">
+          <svg viewBox="0 0 36 36" class="circular-progress">
+            <path class="circle-bg" d="M18 2.0845 a 15.9155 15.9155 0 0 1 0 31.831 a 15.9155 15.9155 0 0 1 0 -31.831" />
+            <path class="circle-progress" :stroke-dasharray="`${votingStore.totalTicketCount > 0 ? (votingStore.usedTicketCount / votingStore.totalTicketCount) * 100 : 0}, 100`"
+              d="M18 2.0845 a 15.9155 15.9155 0 0 1 0 31.831 a 15.9155 15.9155 0 0 1 0 -31.831" />
+          </svg>
+          <span class="progress-text">{{ votingStore.usedTicketCount }}/{{ votingStore.totalTicketCount }}</span>
         </div>
       </header>
     </div>
@@ -127,48 +122,26 @@ onMounted(() => {
   background: $color-surface-glass;
   backdrop-filter: $backdrop-blur;
   -webkit-backdrop-filter: $backdrop-blur;
-  padding: $spacing-md $spacing-lg;
-  padding-top: calc(env(safe-area-inset-top) + #{$spacing-md});
-  display: flex;
-  flex-direction: column;
-  gap: 8px;
-}
-
-.header-row {
+  padding: $spacing-sm $spacing-md;
+  padding-top: calc(env(safe-area-inset-top) + #{$spacing-sm});
   display: flex;
   align-items: center;
   justify-content: space-between;
 }
 
-.header-row-top {
-  .user-name {
-    flex: 1;
-    text-align: left;
-  }
-  .page-title {
-    flex: 1;
-    text-align: center;
-  }
-  .status-indicator {
-    flex: 1;
-    justify-content: flex-end;
-  }
-}
-
-.header-row-bottom {
-  .logout-btn {
-    flex: 1;
-    text-align: left;
-  }
-  .progress-ring {
-    // 保持右侧
-  }
+.header-left {
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+  min-width: 60px;
 }
 
 .page-title {
   font-size: $font-size-lg;
   font-weight: bold;
   color: $color-text-inverse;
+  text-align: center;
+  flex: 1;
 }
 
 .user-name {
@@ -176,47 +149,20 @@ onMounted(() => {
   color: $color-gold;
 }
 
-.status-indicator {
-  display: flex;
-  align-items: center;
-  gap: 4px;
-  color: $color-text-secondary;
-  font-size: $font-size-xs;
-
-  &.active {
-    color: #22c55e;
-  }
-}
-
 .logout-btn {
-  color: #999;
+  color: rgba(255, 255, 255, 0.6);
+  font-size: $font-size-xs;
   cursor: pointer;
-  padding: 2px 6px;
-  border-radius: 4px;
-  transition: all 0.2s;
 
   &:active {
-    background: rgba(255, 255, 255, 0.1);
     color: #fff;
   }
 }
 
-.status-dot {
-  width: 6px;
-  height: 6px;
-  border-radius: 50%;
-  background: #666;
-
-  &.pulsing {
-    background: #22c55e;
-    animation: pulse-dot 1.5s ease-in-out infinite;
-  }
-}
-
 .progress-ring {
   position: relative;
-  width: 48px;
-  height: 48px;
+  width: 56px;
+  height: 56px;
 }
 
 .circular-progress {
@@ -255,10 +201,5 @@ onMounted(() => {
   flex-direction: column;
   gap: $spacing-lg;
 }
-
-@keyframes pulse-dot {
-  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
-  50% { opacity: 0.8; box-shadow: 0 0 0 4px rgba(34, 197, 94, 0); }
-}
 </style>