feat: 会议提交剩余时间+解冻 + 会务/劳务材料批量下载 + 多角色人员/账号模块完善

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

ry-api/ruoyi-system/src/main/resources/mapper/system/SysUserMapper.xml

@@ -170,6 +170,11 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
 	    <include refid="selectUserVo"/>
 		where u.user_name = #{userName} and u.del_flag = '0'
 	</select>
+
+	<select id="selectUserByEmail" parameterType="String" resultMap="SysUserResult">
+	    <include refid="selectUserVo"/>
+		where u.email = #{email} and u.del_flag = '0'
+	</select>
 	
 	<select id="selectUserById" parameterType="Long" resultMap="SysUserResult">
 		<include refid="selectUserVo"/>
@@ -275,6 +280,27 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
 	        update sys_user set role_type = #{roleType} where user_id = #{userId}
 	    </update>
 
+	<!-- 更换管理员: 改 account_type + parent_user_id (parentUserId 为 null 时显式写 NULL = 晋升主账号) -->
+	<update id="updateAccountType">
+		update sys_user
+		set account_type = #{accountType},
+		    <choose>
+		        <when test="parentUserId != null">parent_user_id = #{parentUserId},</when>
+		        <otherwise>parent_user_id = null,</otherwise>
+		    </choose>
+		    update_time = sysdate()
+		where user_id = #{userId}
+	</update>
+
+	<!-- 更换管理员: 原管理员的所有子账号 re-point 到新管理员 (排除新管理员自己) -->
+	<update id="updateParentUserId">
+		update sys_user
+		set parent_user_id = #{newParentUserId}, update_time = sysdate()
+		where parent_user_id = #{oldParentUserId}
+		  and user_id != #{newParentUserId}
+		  and del_flag = '0'
+	</update>
+
 		<update id="updateUserStatus" parameterType="SysUser">
 			update sys_user set status = #{status}, update_time = sysdate() where user_id = #{userId}
 		</update>