feat(积分兑换): 重构积分兑换分类页面并添加优惠券接口

- 重构积分兑换分类页面，调整数据结构并优化点击事件处理
- 新增优惠券相关API接口文件，包含首页数据获取等功能
- 修改页面描述字段从description变为note，背景图字段从image变为background_url

 <!--
  * @Date: 2025-08-27 17:47:03
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2025-09-05 14:08:51
+ * @LastEditTime: 2025-09-05 17:18:30
  * @FilePath: /lls_program/src/pages/RewardCategories/index.vue
- * @Description: 文件描述
+ * @Description: 积分兑换分类
 -->
 <template>
   <view class="min-h-screen flex flex-col bg-white">
-    <!-- <AppHeader title="积分兑换" :showBack="false" /> -->
     <view class="flex-1 pb-20">
       <view class="p-4 space-y-4">
-        <view v-for="(category, index) in categories" :key="category.id" class="rounded-lg overflow-hidden shadow-sm" @click="goToRewards(index)">
+        <view v-for="(category, index) in categories" :key="category.id" class="rounded-lg overflow-hidden shadow-sm" @click="goToRewards(category)">
             <view class="relative" style="height: 380rpx;">
               <view class="absolute inset-0 bg-black bg-opacity-30 flex flex-col justify-end p-4 text-white">
                 <h3 class="text-xl font-bold mb-1">{{ category.title }}</h3>
                 <p class="text-sm text-white text-opacity-90">
-                  {{ category.description }}
+                  {{ category.note }}
                 </p>
               </view>
-              <image mode="aspectFill" :src="category.image" :alt="category.title" class="w-full h-full object-cover" />
-              <view v-if="category.iconUrl" class="absolute top-4 left-4 w-12 h-12 bg-white bg-opacity-90 rounded-full flex items-center justify-center">
-                <image :src="category.iconUrl" alt="" class="w-8 h-8" />
-              </view>
+              <image mode="aspectFill" :src="category.background_url" :alt="category.title" class="w-full h-full object-cover" />
             </view>
         </view>
       </view>
@@ -31,44 +27,44 @@
 </template>
 
 <script setup>
-import { ref } from 'vue';
+import { ref, onMounted } from 'vue';
 import Taro from '@tarojs/taro';
 import BottomNav from '../../components/BottomNav.vue';
+// 导入接口
+import { getCouponHomeAPI } from '@/api/coupon';
 
 const categories = ref([
   {
     id: 'health',
     title: '银龄健康特色兑换区',
-    description: '南京商圈线下实体店消费积分兑换',
-    image: "https://cdn.ipadbiz.cn/lls_prog/images/%E5%8D%97%E4%BA%AC%E8%B7%AF%E5%95%86%E5%9C%88.jpeg",
-    bgPosition: 'center'
+    note: '南京商圈线下实体店消费积分兑换',
+    background_url: "https://cdn.ipadbiz.cn/lls_prog/images/%E5%8D%97%E4%BA%AC%E8%B7%AF%E5%95%86%E5%9C%88.jpeg",
+    tips: ''
   },
   {
     id: 'online',
     title: '民政领域网上商城"银龄购"',
-    description: '线上康复健康购物积分兑换',
-    image: 'https://cdn.ipadbiz.cn/lls_prog/images/%E6%97%A0%E5%AD%97-%E9%93%B6%E9%BE%84%E8%B4%AD.jpeg',
-    bgPosition: 'center',
-    bgColor: 'linear-gradient(135deg, #0ea5e9, #2563eb)',
+    note: '线上康复健康购物积分兑换',
+    background_url: 'https://cdn.ipadbiz.cn/lls_prog/images/%E6%97%A0%E5%AD%97-%E9%93%B6%E9%BE%84%E8%B4%AD.jpeg',
+    tips: '请在"银龄购"线上商城进行积分兑换'
   },
   {
     id: 'merchants',
     title: '人驻商户多元场景广覆盖',
-    description: '丰富商户积分兑换',
-    image: 'https://cdn.ipadbiz.cn/lls_prog/images/%E6%97%A0%E5%AD%97-%E7%A7%AF%E5%88%86%E5%95%86%E5%9F%8E.jpg',
-    bgPosition: 'bottom center',
-    bgColor: 'linear-gradient(135deg, #007bff, #0056b3)',
+    note: '丰富商户积分兑换',
+    background_url: 'https://cdn.ipadbiz.cn/lls_prog/images/%E6%97%A0%E5%AD%97-%E7%A7%AF%E5%88%86%E5%95%86%E5%9F%8E.jpg',
+    tips: ''
   }
 ]);
 
-const goToRewards = (idx) => {
-  if (idx !== 1) {
-    Taro.navigateTo({ url: '/pages/Rewards/index?category=' + categories.value[idx]?.id });
+const goToRewards = (category) => {
+  if (!category.tips) {
+    Taro.navigateTo({ url: '/pages/Rewards/index?category=' + category.id });
   } else {
     // 弹出确认提示框, 不用进行操作, 只是文本提示用户进行线下兑换
     Taro.showModal({
       title: '提示',
-      content: '请联系客服进行线下兑换',
+      content: category.tips,
       showCancel: false
     }).then(res => {
       if (res.confirm) {
@@ -77,4 +73,12 @@ const goToRewards = (idx) => {
     })
   }
 };
+
+onMounted(async () => {
+  const { code, data } = await getCouponHomeAPI();
+  if (code) {
+    // categories.value = data;
+    console.warn(data);
+  }
+})
 </script>