docs(api): 更新API接口文档并调整应用配置

- 添加完整的后端接口文档，包含用户、打卡记录、统计等模块
- 修复应用名称从"喝酒了么"统一更正为"喝了么"
- 重构App.vue中的启动逻辑，增加数据迁移和路由守卫功能
- 调整DrinkCalendar组件的UI间距和尺寸参数
- 优化DrinkCard组件的品牌展示文案
- 修改manifest.json中的应用描述和微信小程序配置
- 调整pages.json中的页面路径顺序和tabBar配置
- 更新全局样式文件中的应用名称标识
- 修改mock数据中的用户头像默认值
- 优化卡片导出功能的绘制逻辑和视觉效果

pages/profile/profile.vue

@@ -3,7 +3,10 @@
     <!-- 用户头部 -->
     <view class="profile-header">
       <view class="profile-glow"></view>
-      <image class="profile-avatar" :src="user.avatar" mode="aspectFill"></image>
+      <image v-if="user.avatar" class="profile-avatar" :src="user.avatar" mode="aspectFill"></image>
+      <view v-else class="profile-avatar profile-avatar-placeholder">
+        <text class="profile-avatar-icon">👤</text>
+      </view>
       <text class="profile-name">{{ user.nickname }}</text>
       <text class="profile-joined">加入于 {{ user.joinedAt || '2026' }}</text>
     </view>
@@ -73,26 +76,19 @@
       <view class="divider"></view>
       <view class="settings-item" @click="showComingSoon('关于')">
         <text class="settings-icon">ℹ️</text>
-        <text class="settings-name">关于喝酒了么</text>
+        <text class="settings-name">关于喝了么</text>
         <text class="settings-arrow">›</text>
       </view>
     </view>
 
-    <!-- 底部TabBar -->
-    <view class="tab-bar">
-      <view class="tab-item" @click="goHome">
-        <text class="tab-icon">🏠</text>
-        <text class="tab-label">首页</text>
-      </view>
-      <view class="tab-center" @click="goRecord">
-        <view class="tab-fab">
-          <text class="tab-fab-icon">+</text>
-        </view>
-      </view>
-      <view class="tab-item tab-active" @click="goProfile">
-        <text class="tab-icon">👤</text>
-        <text class="tab-label">我的</text>
-      </view>
+    <!-- 登出/登录按钮 -->
+    <view class="logout-area">
+      <button v-if="isGuest" class="btn-ghost logout-btn" @click="goLogin">
+        登录账号，同步数据
+      </button>
+      <button v-else class="btn-text logout-btn" @click="handleLogout">
+        退出登录
+      </button>
     </view>
 
     <!-- 成就详情弹窗 -->
@@ -124,7 +120,8 @@ export default {
       stats: {},
       achievementList: [],
       showDetail: false,
-      detailAchievement: {}
+      detailAchievement: {},
+      isGuest: false
     }
   },
   computed: {
@@ -135,6 +132,7 @@ export default {
     }
   },
   onShow() {
+    this.checkLoginState()
     this.loadData()
   },
   methods: {
@@ -152,13 +150,38 @@ export default {
       uni.showToast({ title: `${name}即将上线`, icon: 'none' })
     },
     goHome() {
-      uni.reLaunch({ url: '/pages/index/index' })
+      uni.switchTab({ url: '/pages/index/index' })
     },
     goRecord() {
       uni.navigateTo({ url: '/pages/record/record' })
     },
-    goProfile() {
-      // 已在个人页面
+    checkLoginState() {
+      const isLoggedIn = uni.getStorageSync('is_logged_in')
+      const isGuest = uni.getStorageSync('is_guest')
+      if (!isLoggedIn || isLoggedIn !== 'true') {
+        uni.reLaunch({ url: '/pages/login/login' })
+        return
+      }
+      this.isGuest = isGuest === 'true'
+    },
+    handleLogout() {
+      uni.showModal({
+        title: '退出登录',
+        content: '退出后本地数据将保留，重新登录后可同步',
+        confirmText: '退出',
+        confirmColor: '#FF6B6B',
+        success: (res) => {
+          if (res.confirm) {
+            uni.removeStorageSync('is_logged_in')
+            uni.removeStorageSync('is_guest')
+            uni.removeStorageSync('user_info')
+            uni.reLaunch({ url: '/pages/login/login' })
+          }
+        }
+      })
+    },
+    goLogin() {
+      uni.navigateTo({ url: '/pages/login/login' })
     }
   }
 }
@@ -167,7 +190,7 @@ export default {
 <style lang="scss" scoped>
 .profile-page {
   padding: $sp-lg;
-  padding-bottom: calc(180rpx + env(safe-area-inset-bottom));
+  padding-bottom: calc(120rpx + env(safe-area-inset-bottom));
 }
 
 /* 头部 */
@@ -199,6 +222,20 @@ export default {
   z-index: 2;
 }
 
+.profile-avatar-placeholder {
+  background: $bg-elevated;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  border-style: dashed;
+  border-color: rgba(232,168,56,0.4);
+}
+
+.profile-avatar-icon {
+  font-size: 80rpx;
+  opacity: 0.5;
+}
+
 .profile-name {
   font-size: $fs-xl;
   font-weight: $fw-bold;
@@ -309,65 +346,15 @@ export default {
   color: $text-tertiary;
 }
 
-/* TabBar */
-.tab-bar {
-  position: fixed;
-  bottom: 0;
-  left: 0;
-  right: 0;
-  height: 120rpx;
-  background: $bg-card;
+/* 登出区域 */
+.logout-area {
+  padding: $sp-xl 0 $sp-3xl;
   display: flex;
-  align-items: center;
-  justify-content: space-around;
-  padding-bottom: env(safe-area-inset-bottom);
-  border-top: 2rpx solid rgba(255,255,255,0.04);
-  z-index: 50;
-}
-
-.tab-item {
-  flex: 1;
-  display: flex;
-  flex-direction: column;
-  align-items: center;
-  gap: $sp-xs;
-}
-
-.tab-icon {
-  font-size: $fs-xl;
-  opacity: 0.5;
-}
-
-.tab-label {
-  font-size: $fs-xs;
-  color: $text-tertiary;
-}
-
-.tab-active {
-  .tab-icon { opacity: 1; }
-  .tab-label { color: $amber; }
-}
-
-.tab-center {
-  position: relative;
-  top: -20rpx;
-}
-
-.tab-fab {
-  width: 100rpx;
-  height: 100rpx;
-  background: linear-gradient(135deg, $amber-light, $amber-deep);
-  border-radius: $radius-full;
-  display: flex;
-  align-items: center;
   justify-content: center;
-  box-shadow: $shadow-amber;
 }
 
-.tab-fab-icon {
-  font-size: $fs-2xl;
-  font-weight: $fw-bold;
-  color: $text-on-amber;
+.logout-btn {
+  min-width: 300rpx;
 }
 
 /* 成就详情弹窗 */