fix(user): 修复订单入口tab错位并统一购物车角标样式

- 将订单快捷入口和我的订单tab索引改为tabIndex，修正页面跳转参数使用`?tab=`传递
- 修复因状态值与tab索引不匹配导致的订单状态页错位问题
- 更新`user.tsx`和`index.tsx`中相关订单tab配置，确保键名和逻辑一致
- 购物车入口数量角标由手写样式改为Badge组件，去除白色边框样式
- 购物车角标与用户订单图标角标样式保持一致，使用绝对定位调整位置
- `navigateTo`跳转及未登录重定向均支持传递正确的tab索引参数

src/pages/shop/product-detail.tsx

@@ -11,6 +11,7 @@ import {
 } from '@/api/shop/shopGoodsFavorite'
 import type { ShopGoods, ShopGoodsSku } from '@/api/shop/shopGoods/model'
 import Price from '@/components/common/Price'
+import Badge from '@/components/common/Badge'
 import SkuSelector from '@/components/business/SkuSelector'
 import { useCartContext } from '@/contexts/CartContext'
 import { useUserContext } from '@/contexts/UserContext'
@@ -433,28 +434,8 @@ const ProductDetailPage: React.FC = () => {
           <View className='flex-1 flex flex-col items-center' onClick={handleGoCart}>
             <View className='relative inline-flex items-center justify-center'>
               <Text className='text-lg'>🛒</Text>
-              {totalCount > 0 && (
-                <View
-                  className='flex items-center justify-center'
-                  style={{
-                    position: 'absolute',
-                    top: '-6px',
-                    right: '-10px',
-                    minWidth: '16px',
-                    height: '16px',
-                    borderRadius: '8px',
-                    backgroundColor: '#ef4444',
-                    borderWidth: '1.5px',
-                    borderStyle: 'solid',
-                    borderColor: '#ffffff',
-                    paddingHorizontal: '3px',
-                  }}
-                >
-                  <Text className='text-white text-[10px] font-bold leading-none'>
-                    {totalCount > 99 ? '99+' : totalCount}
-                  </Text>
-                </View>
-              )}
+              {/* 购物车数量角标：count 为 0 时组件内部不渲染 */}
+              <Badge count={totalCount} className='absolute -top-1 -right-1' />
             </View>
             <Text className='text-xs text-gray-500 mt-1 whitespace-nowrap'>购物车</Text>
           </View>

src/pages/user/index.tsx

@@ -178,16 +178,16 @@ const UserPage: React.FC = () => {
           </View>
           <View className='grid grid-cols-4 gap-2'>
             {[
-              { icon: '💳', label: '待付款', status: 0, color: '#f093fb' },
-              { icon: '📦', label: '待发货', status: 1, color: '#667eea' },
-              { icon: '🚚', label: '待收货', status: 2, color: '#4facfe' },
-              { icon: '✅', label: '已完成', status: 3, color: '#52c41a' },
+              { icon: '💳', label: '待付款', tabIndex: 1, color: '#f093fb' },
+              { icon: '📦', label: '待发货', tabIndex: 2, color: '#667eea' },
+              { icon: '🚚', label: '待收货', tabIndex: 3, color: '#4facfe' },
+              { icon: '✅', label: '已完成', tabIndex: 4, color: '#52c41a' },
             ].map(item => (
               <View
-                key={item.status}
+                key={item.tabIndex}
                 className='flex flex-col items-center py-2 rounded-lg'
                 style={{ background: `${item.color}10` }}
-                onClick={() => { Taro.setStorageSync('order_tab', item.status); Taro.navigateTo({ url: '/pages/order/list' }) }}
+                onClick={() => { Taro.setStorageSync('order_tab', item.tabIndex); Taro.navigateTo({ url: `/pages/order/list?tab=${item.tabIndex}` }) }}
               >
                 <Text className='text-xl mb-1'>{item.icon}</Text>
                 <Text className='text-xs text-gray-600'>{item.label}</Text>

src/pages/user/user.tsx

@@ -138,10 +138,10 @@ const UserPage: React.FC = () => {
     }
 
     // 订单快捷入口点击：需要登录
-    const handleOrderTabClick = (status: number) => {
-        if (!requireLogin({ action: 'viewOrder', redirect: '/pages/order/list', content: '登录后才能查看订单，是否前往登录？' })) return
-        Taro.setStorageSync('order_tab', status)
-        Taro.navigateTo({ url: '/pages/order/list' })
+    const handleOrderTabClick = (tabIndex: number) => {
+        if (!requireLogin({ action: 'viewOrder', redirect: `/pages/order/list?tab=${tabIndex}`, content: '登录后才能查看订单，是否前往登录？' })) return
+        Taro.setStorageSync('order_tab', tabIndex)
+        Taro.navigateTo({ url: `/pages/order/list?tab=${tabIndex}` })
     }
 
     const handleViewAllOrders = () => {
@@ -268,15 +268,15 @@ const UserPage: React.FC = () => {
                     <View className='grid grid-cols-4 gap-2'>
                         {[
                             // status 与 OrderListStatus 对齐：0待付款 1待发货 3待收货 5已完成
-                            { icon: '💳', label: '待付款', status: 0, count: orderStats?.waitPay },
-                            { icon: '📦', label: '待发货', status: 1, count: orderStats?.waitDeliver },
-                            { icon: '🚚', label: '待收货', status: 3, count: orderStats?.waitReceive },
-                            { icon: '✅', label: '已完成', status: 5, count: orderStats?.completed },
+                            { icon: '💳', label: '待付款', tabIndex: 1, count: orderStats?.waitPay },
+                            { icon: '📦', label: '待发货', tabIndex: 2, count: orderStats?.waitDeliver },
+                            { icon: '🚚', label: '待收货', tabIndex: 3, count: orderStats?.waitReceive },
+                            { icon: '✅', label: '已完成', tabIndex: 4, count: orderStats?.completed },
                         ].map(item => (
                             <View
-                                key={item.status}
+                                key={item.tabIndex}
                                 className={`flex flex-col items-center py-2 relative ${!isLoggedIn ? 'opacity-50' : ''}`}
-                                onClick={() => handleOrderTabClick(item.status)}
+                                onClick={() => handleOrderTabClick(item.tabIndex)}
                             >
                                 <Text className='text-xl mb-1'>{item.icon}</Text>
                                 <Text className='text-xs text-gray-600'>{item.label}</Text>