后端优化，增加新需求

backend-java/src/main/java/com/nanri/aiimage/modules/permission/mapper/AdminUserMapper.java

@@ -3,14 +3,7 @@ package com.nanri.aiimage.modules.permission.mapper;
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import com.nanri.aiimage.modules.permission.model.entity.AdminUserEntity;
 import org.apache.ibatis.annotations.Mapper;
-import org.apache.ibatis.annotations.Param;
-import org.apache.ibatis.annotations.Select;
-
-import java.util.List;
 
 @Mapper
 public interface AdminUserMapper extends BaseMapper<AdminUserEntity> {
-
-    @Select("SELECT id FROM users WHERE username LIKE CONCAT('%', #{username}, '%') ORDER BY id ASC")
-    List<Long> selectIdsByUsernameLike(@Param("username") String username);
 }