feat(biz_project+meeting): 项目+会议软删除级联, admin/manager 双角色可删

biz_project* 5 表级联 (project/plan/assign/sponsor_assign/rating) + 会议链
biz_meeting* 6 表级联 admin-only → admin/manager 可删

DB:
- 5 ALTER TABLE 加 is_deleted TINYINT DEFAULT 0 NOT NULL (biz_project/plan/assign/sponsor_assign/rating)
- biz_meeting* 6 表已有 is_deleted 列 (上轮已 ALTER)

Domain (10 文件):
- 5 个 biz_project* 加 isDeleted 字段
- 6 个 biz_meeting* 加 isDeleted 字段
- (audit_log 列名特殊: 使用 deleted 字段存操作类型, 不冲突)

Mapper 接口 (10 文件):
- 5 个 project mapper 加 softDeleteByProjectId / softDeleteByProjectNo
- 5 个 meeting mapper 加 softDeleteByMeetingId
- BizMeetingMapper 加 selectIdListByProjectId (级联调用)

Mapper XML (10 文件):
- 所有 SELECT 加 is_deleted=0 过滤 (含 JOIN 子查询)
- 加 softDeleteByXxx UPDATE (10 处)
- BizMeetingMapper.xml 的 plan LEFT JOIN 加 proj.is_deleted=0 防悬挂

Service (3 文件):
- IBizProjectService.softDeleteCascade/Batch (含会议链调用)
- IBizMeetingService.softDeleteCascade/Batch
- BizProjectServiceImpl / BizMeetingServiceImpl @Transactional(rollbackFor=Exception.class)

Controller (2 文件):
- BizProjectController.DELETE 改 admin+manager 可删
- BizMeetingController.DELETE 改 admin+manager 可删 (放宽权限)

ry-api/ruoyi-business/src/main/resources/mapper/business/BizMeetingMapper.xml

@@ -28,18 +28,20 @@
         <result property="createTime"    column="create_time"    />
         <result property="updateBy"    column="update_by"    />
         <result property="updateTime"    column="update_time"    />
+        <result property="isDeleted"    column="is_deleted"    />
     </resultMap>
     <sql id="selectFields">
-        select meeting_id, business_id, project_id, project_no, project_name, meeting_name, period_no, total_periods, project_form, start_time, end_time, org_name, address, current_stage, supervision_opinion, supervision_by, supervision_time, material_audit_stage, voucher_audit_stage, invitation_url, schedule_url, labor_signed, create_by, create_time, update_by, update_time
+        select meeting_id, business_id, project_id, project_no, project_name, meeting_name, period_no, total_periods, project_form, start_time, end_time, org_name, address, current_stage, supervision_opinion, supervision_by, supervision_time, material_audit_stage, voucher_audit_stage, invitation_url, schedule_url, labor_signed, create_by, create_time, update_by, update_time, is_deleted
         from biz_meeting
     </sql>
     <select id="selectByPrimaryKey" resultMap="BizMeetingResult" parameterType="Long">
         <include refid="selectFields"/>
-        where meeting_id = #{meetingId}
+        where meeting_id = #{meetingId} and is_deleted = 0
     </select>
     <select id="selectList" resultMap="BizMeetingResult" parameterType="BizMeeting">
         <include refid="selectFields"/>
         <where>
+            is_deleted = 0
             <if test="projectNo != null and projectNo != ''">and project_no like concat('%', #{projectNo}, '%')</if>
             <if test="meetingId != null">and meeting_id = #{meetingId}</if>
             <if test="meetingName != null and meetingName != ''">and meeting_name like concat('%', #{meetingName}, '%')</if>
@@ -48,8 +50,8 @@
             <if test="currentStage != null and currentStage != ''">and current_stage = #{currentStage}</if>
             <if test="startTime != null">and start_time &gt;= #{startTime}</if>
             <if test="endTime != null">and end_time &lt;= #{endTime}</if>
-            <!-- doctor 角色按 user_id 过滤 (走 biz_meeting_attendee 中间表) -->
-            <if test="userId != null">and exists (select 1 from biz_meeting_attendee a where a.meeting_id = biz_meeting.meeting_id and a.user_id = #{userId})</if>
+            <!-- doctor 角色按 user_id 过滤 (走 biz_meeting_attendee 中间表, 同时 attendee 也需 is_deleted=0) -->
+            <if test="userId != null">and exists (select 1 from biz_meeting_attendee a where a.meeting_id = biz_meeting.meeting_id and a.user_id = #{userId} and a.is_deleted = 0)</if>
         </where>
         order by meeting_id desc
     </select>
@@ -140,4 +142,12 @@
             #{meetingId}
         </foreach>
     </delete>
+    <!-- 软删除: admin 删除会议时级联调用, 置 is_deleted=1 (不真删) -->
+    <update id="softDeleteByPrimaryKey" parameterType="Long">
+        update biz_meeting set is_deleted = 1 where meeting_id = #{meetingId}
+    </update>
+    <!-- 项目级联删除时用: 列 project_id 下所有 meeting_id, 不带 is_deleted 过滤 (软删 idempotent, 已删的再删一次无副作用) -->
+    <select id="selectIdListByProjectId" resultType="Long" parameterType="Long">
+        select meeting_id from biz_meeting where project_id = #{projectId}
+    </select>
 </mapper>