feat: 管理后台完整可用 + 注册登录记日志 + 提取信息结构化展示 + 微信配置就绪

- 管理后台用户/统计/日志/配置四页签全部对接真实后端API
- auth注册/登录/游客/微信登录事件写入usage_logs表
- 提取信息结果从原始JSON改为卡片式字段列表（中文标签）
- 管理后台搜索按钮增加加载态和结果数提示
- 配置WECHAT_APP_ID/WECHAT_APP_SECRET
- 客户/产品/报价单CRUD页面完整（导出导入批量操作）

uni-app/src/pages/index/index.vue

@@ -71,12 +71,15 @@
             <text class="result-text">{{ tryResult }}</text>
           </view>
         </view>
-        <view class="try-extracted" v-if="tryExtracted">
+        <view class="try-extracted" v-if="tryExtracted && Object.keys(tryExtracted).length">
           <view class="result-header">
             <text class="result-label">提取结果</text>
           </view>
           <view class="extracted-content">
-            <text class="extracted-text">{{ tryExtracted }}</text>
+            <view class="extract-field" v-for="(val, key) in tryExtracted" :key="key">
+              <text class="extract-field-label">{{ extractFieldLabels[key] || key }}</text>
+              <text class="extract-field-value">{{ val || '-' }}</text>
+            </view>
           </view>
         </view>
       </view>
@@ -144,7 +147,7 @@
           <text class="more-icon">👨‍👩‍👧‍👦</text>
           <text class="more-text">团队</text>
         </view>
-        <view class="more-item" @click="hasLogin ? goToPage('/pages/admin/admin') : goToLogin()">
+        <view class="more-item" v-if="isAdmin" @click="goToPage('/pages/admin/admin')">
           <text class="more-icon">⚙️</text>
           <text class="more-text">管理</text>
         </view>
@@ -272,6 +275,10 @@ const hasLogin = computed(() => {
   const isGuest = uni.getStorageSync('isGuest')
   return !!token && !isGuest
 })
+const isAdmin = computed(() => {
+  return hasLogin.value && userInfo.value?.role === 'admin'
+})
+const userInfo = ref(null)
 const stats = ref({
   customers: 0,
   silentCustomers: 0,
@@ -291,7 +298,13 @@ const generatedContent = ref([])
 
 const tryText = ref('')
 const tryResult = ref('')
-const tryExtracted = ref('')
+const tryExtracted = ref(null)
+const extractFieldLabels = {
+  product_name: '产品名称', quantity: '数量', price: '价格',
+  currency: '货币', delivery_terms: '交货条款', target_country: '目标国家',
+  intent: '意图', product_interest: '感兴趣产品', budget: '预算',
+  urgency: '紧迫程度', contact_info: '联系方式',
+}
 const tryLoading = ref(false)
 
 onShow(() => {
@@ -309,7 +322,7 @@ onShow(() => {
     loadFollowupStats()
   } else {
     tryResult.value = ''
-    tryExtracted.value = ''
+    tryExtracted.value = null
     tryText.value = ''
   }
 })
@@ -429,7 +442,7 @@ const handleTryTranslate = async () => {
   }
   tryLoading.value = true
   tryResult.value = ''
-  tryExtracted.value = ''
+  tryExtracted.value = null
 
   try {
     const chinesePattern = /[\u4e00-\u9fa5]/
@@ -455,7 +468,7 @@ const handleTryExtract = async () => {
   }
   tryLoading.value = true
   tryResult.value = ''
-  tryExtracted.value = ''
+  tryExtracted.value = null
 
   try {
     const isGuest = uni.getStorageSync('isGuest')
@@ -463,7 +476,7 @@ const handleTryExtract = async () => {
       ? await translateApi.publicExtract(tryText.value, 'auto')
       : await translateApi.extract(tryText.value, 'auto')
     const extracted = res.extracted || {}
-    tryExtracted.value = JSON.stringify(extracted, null, 2)
+    tryExtracted.value = typeof extracted === 'string' ? { raw: extracted } : extracted
     uni.showToast({ title: '提取成功', icon: 'success' })
   } catch (err) {
     uni.showToast({ title: err.message || '提取失败', icon: 'none' })
@@ -761,13 +774,20 @@ const playTryResult = () => {
   opacity: 0.6;
 }
 
-.try-result, .try-extracted {
+.try-result {
   background: #f6ffed;
   border-radius: 12rpx;
   padding: 24rpx;
   margin-top: 20rpx;
 }
 
+.try-extracted {
+  background: #f9f0ff;
+  border-radius: 12rpx;
+  padding: 24rpx;
+  margin-top: 20rpx;
+}
+
 .result-header {
   display: flex;
   justify-content: space-between;
@@ -802,13 +822,36 @@ const playTryResult = () => {
   padding: 16rpx;
 }
 
-.result-text, .extracted-text {
+.result-text {
   font-size: 28rpx;
   color: #333;
   line-height: 1.6;
   white-space: pre-wrap;
 }
 
+.extract-field {
+  display: flex;
+  padding: 8rpx 0;
+  border-bottom: 1rpx solid rgba(114, 46, 209, 0.1);
+}
+
+.extract-field:last-child {
+  border-bottom: none;
+}
+
+.extract-field-label {
+  width: 160rpx;
+  font-size: 24rpx;
+  color: #722ed1;
+  flex-shrink: 0;
+}
+
+.extract-field-value {
+  flex: 1;
+  font-size: 24rpx;
+  color: #333;
+}
+
 .section {
   background: #fff;
   border-radius: 16rpx;