feat: 删除JSP视图层，完善评价和通知系统，新增拼团模块

- 删除所有 JSP 页面（20个文件），前端完全迁移至 Vue 3 SPA
- 完善评价系统：ReviewDialog 组件、用户评价历史页、评价状态检查API
- 新增通知系统：Notification 实体/仓库/服务/控制器，NotificationCenter 接入真实API
- 新增拼团模块：GroupBuying 全套后端和前端页面
- 修复 review check API 参数双重包装导致请求格式错误
- 修复通知 API 路径缺少 /api 前缀和响应格式处理
- MessageListenerService 集成 NotificationService 创建持久化通知

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

flash-sale-frontend/src/components/common/SearchComponent.vue

@@ -101,7 +101,7 @@
           <el-collapse v-model="activeCollapse">
             <el-collapse-item name="advanced">
               <template #title>
-                <span class="text-sm text-blue-500">
+                <span class="search-advanced-title">
                   <el-icon><Setting /></el-icon>
                   高级搜索
                 </span>
@@ -250,7 +250,7 @@ const highlightKeyword = (text: string) => {
   if (!searchQuery.value) return text
   
   const regex = new RegExp(`(${searchQuery.value})`, 'gi')
-  return text.replace(regex, '<span class="text-red-500 font-bold">$1</span>')
+  return text.replace(regex, '<span class="search-highlight">$1</span>')
 }
 
 // 获取搜索建议
@@ -365,6 +365,14 @@ onMounted(async () => {
   }
 }
 
+.search-advanced-title {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  font-size: 14px;
+  color: #44443f;
+}
+
 .search-panel {
   .search-section {
     margin-bottom: 20px;
@@ -391,7 +399,7 @@ onMounted(async () => {
         cursor: pointer;
         
         &:hover {
-          background-color: var(--el-color-primary-light-9);
+          background-color: #efefed;
         }
       }
     }
@@ -408,7 +416,7 @@ onMounted(async () => {
         transition: background-color 0.3s;
         
         &:hover {
-          background-color: #f5f7fa;
+          background-color: #f7f7f6;
         }
         
         .content {
@@ -428,12 +436,12 @@ onMounted(async () => {
             
             .type {
               padding: 0 6px;
-              background-color: #f0f0f0;
+              background-color: #efefed;
               border-radius: 2px;
             }
             
             .price {
-              color: #f56c6c;
+              color: #2b2b27;
               font-weight: 500;
             }
           }
@@ -444,7 +452,7 @@ onMounted(async () => {
   
   .advanced-search {
     margin-top: 20px;
-    border-top: 1px solid #e4e7ed;
+    border-top: 1px solid #d8cebf;
     padding-top: 10px;
     
     .advanced-form {
@@ -452,4 +460,4 @@ onMounted(async () => {
     }
   }
 }
-</style>
+</style>