feat: 会议ID应用赋值 + 会议表单/详情优化 + admin工作台统计与用户管理

- meetingId 由 DB 自增改为应用赋值 10 位数字 (yyMMdd + 4 位序列, Redis 按日期计数)
- 会议开始时间不能晚于结束时间校验; 参会人表单身份证附件/角色单独一行
- 会议详情左右列比例 7:3 -> 8:2 (材料审核列收窄)
- admin/workbench 用户总数/角色类型数/各角色分布统计修复 (改用 listByRole 按 role_type 过滤)
- 新增 admin 用户管理接口 + 门户页脚 + H5 签到/上传优化

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

@@ -53,6 +53,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
     <!-- 用户扩展视图 resultMap: 继承 SysUserResult, 附加 sys_user.role_type 业务角色 -->
     <resultMap type="SysUserExtendVo" id="SysUserExtendResult" extends="SysUserResult">
         <result property="roleType" column="u_role_type" />
+        <result property="orgName"  column="org_name" />
     </resultMap>
 	
 	<sql id="selectUserVo">
@@ -99,7 +100,11 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
 	-->
 	<select id="selectUserExtendList" parameterType="SysUserExtendVo" resultMap="SysUserExtendResult">
 		select u.user_id, u.dept_id, u.nick_name, u.user_name, u.email, u.avatar, u.phonenumber, u.sex, u.status, u.del_flag, u.login_ip, u.login_date, u.create_by, u.create_time, u.update_by, u.update_time, u.remark, d.dept_name, d.leader,
-		       u.role_type as u_role_type
+		       u.role_type as u_role_type,
+		       coalesce(
+		           (select o.org_name from biz_org o where o.user_id = u.user_id limit 1),
+		           (select o.org_name from biz_org o join biz_person p on p.org_id = o.org_id where p.user_id = u.user_id limit 1)
+		       ) as org_name
 		from sys_user u
 		left join sys_dept d on u.dept_id = d.dept_id
 		where u.del_flag = '0'
@@ -124,6 +129,15 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
 		<if test="deptId != null and deptId != 0">
 			AND (u.dept_id = #{deptId} OR u.dept_id IN ( SELECT t.dept_id FROM sys_dept t WHERE find_in_set(#{deptId}, ancestors) ))
 		</if>
+		<if test="nickName != null and nickName != ''"><!-- 姓名过滤 -->
+			AND u.nick_name like concat('%', #{nickName}, '%')
+		</if>
+		<if test="orgName != null and orgName != ''"><!-- 单位名称过滤 (MAIN 走 biz_org, SUB 走 biz_person) -->
+			AND (
+			    exists (select 1 from biz_org o where o.user_id = u.user_id and o.org_name like concat('%', #{orgName}, '%'))
+			    or exists (select 1 from biz_person p join biz_org o2 on o2.org_id = p.org_id where p.user_id = u.user_id and o2.org_name like concat('%', #{orgName}, '%'))
+			)
+		</if>
 		<if test="roleType != null and roleType != ''"><!-- 业务角色过滤 -->
 			AND u.role_type = #{roleType}
 		</if>