feat(image): 全项目应用图片压缩优化

- 将图片显示统一替换为 getCompressedImageUrl 函数处理压缩
- 覆盖 35 个文件，包括 4 个组件和 31 个页面
- 主要组件：LazyImage、ProductCard、OrderCard、SkuSelector 内部自动压缩图片
- 主要页面：购物车、订单、积分、活动、拼团、秒杀、收藏、浏览历史等
- 跳过用户头像、二维码、商品详情大图及所有 Taro.previewImage 调用
- 调整压缩默认宽度为 300，保持质量90，启用压缩功能

src/pages/event/detail/index.tsx

@@ -3,6 +3,7 @@ import { View, Text, ScrollView, Image } from '@tarojs/components'
 import Taro from '@tarojs/taro'
 import { getShopEvent, getRegistrationStatus, getEventStatusLabel } from '@/api/shop/shopEvent'
 import type { ShopEvent, RegistrationStatus, EventFormField } from '@/api/shop/shopEvent'
+import { getCompressedImageUrl } from '@/utils/image'
 
 definePageConfig({ navigationBarTitleText: '赛事详情' })
 
@@ -85,7 +86,7 @@ const EventDetailPage: React.FC = () => {
       <ScrollView scrollY className='flex-1'>
         {/* 封面 */}
         {event.image ? (
-          <Image src={event.image} className='w-full' style={{ height: '200px' }} mode='aspectFill' />
+          <Image src={getCompressedImageUrl(event.image)} className='w-full' style={{ height: '200px' }} mode='aspectFill' />
         ) : (
           <View className='w-full flex items-center justify-center' style={{ height: '200px', background: 'linear-gradient(135deg, #667eea 0%, #764ba2 100%)' }}>
             <Text className='text-6xl'>🏆</Text>

src/pages/event/list/index.tsx

@@ -5,6 +5,7 @@ import { pageShopEvent, getEventStatusLabel } from '@/api/shop/shopEvent'
 import type { ShopEvent } from '@/api/shop/shopEvent'
 import EmptyState from '@/components/common/EmptyState'
 import LoadMore from '@/components/common/LoadMore'
+import { getCompressedImageUrl } from '@/utils/image'
 
 definePageConfig({ navigationBarTitleText: '赛事报名' })
 
@@ -84,7 +85,7 @@ const EventListPage: React.FC = () => {
                 >
                   {/* 封面 */}
                   {event.image ? (
-                    <Image src={event.image} className='w-full' style={{ height: '160px' }} mode='aspectFill' />
+                    <Image src={getCompressedImageUrl(event.image)} className='w-full' style={{ height: '160px' }} mode='aspectFill' />
                   ) : (
                     <View className='w-full flex items-center justify-center' style={{ height: '140px', background: 'linear-gradient(135deg, #667eea 0%, #764ba2 100%)' }}>
                       <Text className='text-5xl'>🏆</Text>