feat(mapper): 添加物理删除功能并优化垃圾清理逻辑

- 在 GroupingMapper 和 MarkdownFileMapper 中添加物理删除方法
- 修改 TrashServiceImpl 中的 cleanTrash 方法，使用新增的物理删除方法
-优化了垃圾清理的 SQL 执行效率

biji-houdaun/src/main/java/com/test/bijihoudaun/mapper/GroupingMapper.java

@@ -23,4 +23,6 @@ public interface GroupingMapper extends BaseMapper<Grouping> {
 
     @Update("UPDATE grouping SET is_deleted = 0, deleted_at = NULL, deleted_by = NULL WHERE id = #{id}")
     void restoreById(@Param("id") Long id);
+    @Delete("DELETE FROM grouping WHERE is_deleted = 1")
+    void physicalDeleteByIsDeleted();
 }

biji-houdaun/src/main/java/com/test/bijihoudaun/mapper/MarkdownFileMapper.java

@@ -41,4 +41,6 @@ public interface MarkdownFileMapper extends BaseMapper<MarkdownFile> {
 
     @Update("UPDATE markdown_file SET is_deleted = 0, deleted_at = NULL, deleted_by = NULL WHERE id = #{id}")
     void restoreById(@Param("id") Long id);
+    @Delete("DELETE FROM markdown_file WHERE is_deleted = 1")
+    void physicalDeleteByIsDeleted();
 }

biji-houdaun/src/main/java/com/test/bijihoudaun/service/impl/TrashServiceImpl.java

@@ -84,7 +84,7 @@ public class TrashServiceImpl implements TrashService {
     @Override
     @Transactional
     public void cleanTrash() {
-        markdownFileMapper.delete(new QueryWrapper<MarkdownFile>().eq("is_deleted", 1));
-        groupingMapper.delete(new QueryWrapper<Grouping>().eq("is_deleted", 1));
+        markdownFileMapper.physicalDeleteByIsDeleted();
+        groupingMapper.physicalDeleteByIsDeleted();
     }
 }