feat(ui): redesign all miniprogram pages

- 全局样式改为粉色(#E6508C)/金色(#DCB982)/绿色(#52c41a)配色
- 所有非tab页使用自定义导航栏，带彩色头部+标题+副标题
- login页: 粉色头部+🌸图标+微信授权登录
- scan页: 粉色头部+虚线扫码框+手动输入按钮
- ble-connect页: 蓝牙提示+搜索中/已发现设备卡片
- bind-success页: 绿色头部+成功图标+7天试用提示卡
- wear-check页: 设备信息行+佩戴指引卡片
- index首页: 粉色设备卡片+开始护理/设备管理按钮
- treatment-setup页: 模式选择+面部地图选区域
- auto-scan页: 面部轮廓+扫描线动画+检测标签
- treating页: 蓝色头部+大倒计时+渐变进度条+放松提示
- treatment-done页: 绿色头部+统计卡片+已记录提示
- subscribe-prompt页: 普通/智能模式对比+试用提示+金色订阅按钮
- subscribe-plans页: 金色头部+服务卡片+月卡/年卡选择
- subscribe-success页: 绿色头部+订阅详情卡+金色按钮
- profile页: 渐变头部+用户行+订阅卡+菜单列表
- history页: 粉色统计行+模式标签记录列表

miniprogram/pages/profile/profile.wxml

@@ -1,43 +1,51 @@
-<view class="container">
-  <view class="card profile-header">
-    <view class="avatar-area">
-      <image wx:if="{{userInfo && userInfo.avatar}}" src="{{userInfo.avatar}}" class="avatar" />
-      <view wx:else class="avatar-placeholder">{{(userInfo && userInfo.nickname ? userInfo.nickname[0] : '?')}}</view>
-    </view>
-    <view class="user-info">
-      <view class="nickname">{{userInfo && userInfo.nickname || '未设置昵称'}}</view>
-      <view class="text-muted">ID: {{userInfo && userInfo.user_id || ''}}</view>
-    </view>
+<view class="page">
+  <view class="page-header page-header-gradient">
+    <view class="page-header-title">我的</view>
   </view>
 
-  <view class="card">
-    <view class="menu-item" bindtap="onManageDevice">
-      <text>设备管理</text>
-      <view class="flex-row">
-        <text class="text-muted">{{deviceCount}} 台设备</text>
-        <text class="arrow-sm">&#10095;</text>
+  <view class="page-content">
+    <view class="user-row">
+      <view class="user-avatar">👤</view>
+      <view class="user-info">
+        <view class="user-name">{{userInfo.nickname || '未登录'}}</view>
+        <view class="user-phone">{{userInfo.phone || ''}}</view>
       </view>
     </view>
-    <view class="divider"></view>
-    <view class="menu-item" bindtap="onViewSubscription">
-      <text>订阅管理</text>
-      <view class="flex-row">
-        <text class="text-muted">
-          {{subscription && subscription.status > 0 ? '剩余 ' + subRemaining + ' 天' : '未订阅'}}
-        </text>
-        <text class="arrow-sm">&#10095;</text>
-      </view>
-    </view>
-    <view class="divider"></view>
-    <view class="menu-item" bindtap="onViewHistory">
-      <text>护理记录</text>
-      <text class="arrow-sm">&#10095;</text>
-    </view>
-  </view>
 
-  <view class="card">
-    <view class="menu-item logout" bindtap="onLogout">
-      <text>退出登录</text>
+    <view class="sub-card" wx:if="{{subscription}}">
+      <view class="sub-left">
+        <view class="sub-name">✨ 智能模式</view>
+        <view class="sub-remain">剩余 {{subRemaining}}天</view>
+      </view>
+      <text class="status-badge status-badge-gold">试用中</text>
+    </view>
+
+    <view class="menu-list">
+      <view class="menu-item" bindtap="onManageDevice">
+        <view class="menu-icon">📱</view>
+        <view class="menu-text">我的设备</view>
+        <text class="menu-arrow">›</text>
+      </view>
+      <view class="menu-item" bindtap="onViewHistory">
+        <view class="menu-icon">📋</view>
+        <view class="menu-text">护理记录</view>
+        <text class="menu-arrow">›</text>
+      </view>
+      <view class="menu-item" bindtap="onViewSubscription">
+        <view class="menu-icon">💳</view>
+        <view class="menu-text">订阅管理</view>
+        <text class="menu-arrow">›</text>
+      </view>
+      <view class="menu-item">
+        <view class="menu-icon">❓</view>
+        <view class="menu-text">使用帮助</view>
+        <text class="menu-arrow">›</text>
+      </view>
+      <view class="menu-item">
+        <view class="menu-icon">📞</view>
+        <view class="menu-text">联系我们</view>
+        <text class="menu-arrow">›</text>
+      </view>
     </view>
   </view>
 </view>