增加后台管理模块

backend-single/src/main/java/com/emotion/mapper/AdminMapper.java

@@ -0,0 +1,15 @@
+package com.emotion.mapper;
+
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.emotion.entity.Admin;
+import org.apache.ibatis.annotations.Mapper;
+
+/**
+ * 管理员Mapper接口
+ * 
+ * @author huazhongmin
+ * @date 2025-10-27
+ */
+@Mapper
+public interface AdminMapper extends BaseMapper<Admin> {
+}