记录页面添加分页、搜索、全选和一键清理功能

后端实现：
- RecordController：添加分页和搜索参数支持
- DeductRecordService：新增findByUserIdWithSearch方法
- DeductRecordRepository：添加分页查询和关键词搜索方法
- 新增deleteBatch批量删除接口

前端实现：
- 搜索栏：支持按姓名或事项搜索
- 分页功能：上一页/下一页按钮，显示页码信息
- 全选功能：复选框全选/取消全选
- 批量删除：选中多条记录后可批量删除
- 一键清空：清空所有测算记录
- UI优化：添加操作栏、复选框样式

API接口：
- GET /api/records/list - 支持分页和搜索参数
- POST /api/records/deleteBatch - 批量删除记录
- POST /api/records/clear - 清空所有记录

src/main/java/xuan/repository/DeductRecordRepository.java

@@ -1,5 +1,6 @@
 package xuan.repository;
 
+import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.Query;
@@ -14,8 +15,18 @@ public interface DeductRecordRepository extends JpaRepository<DeductRecord, Long
     
     List<DeductRecord> findByUserIdOrderByCreateTimeDesc(String userId);
     
+    Page<DeductRecord> findByUserIdOrderByCreateTimeDesc(String userId, Pageable pageable);
+    
     List<DeductRecord> findByUserIdAndTypeOrderByCreateTimeDesc(String userId, String type);
     
+    Page<DeductRecord> findByUserIdAndType(String userId, String type, Pageable pageable);
+    
     @Query("SELECT d FROM DeductRecord d WHERE d.userId = :userId ORDER BY d.createTime DESC")
     List<DeductRecord> findTop10ByUserIdOrderByCreateTimeDesc(@Param("userId") String userId, Pageable pageable);
+    
+    @Query("SELECT d FROM DeductRecord d WHERE d.userId = :userId AND (d.name LIKE %:keyword% OR d.occupy LIKE %:keyword%) ORDER BY d.createTime DESC")
+    Page<DeductRecord> findByUserIdAndKeyword(@Param("userId") String userId, @Param("keyword") String keyword, Pageable pageable);
+    
+    @Query("SELECT d FROM DeductRecord d WHERE d.userId = :userId AND d.type = :type AND (d.name LIKE %:keyword% OR d.occupy LIKE %:keyword%) ORDER BY d.createTime DESC")
+    Page<DeductRecord> findByUserIdAndTypeAndKeyword(@Param("userId") String userId, @Param("type") String type, @Param("keyword") String keyword, Pageable pageable);
 }