feat(front): 项目/会议管理 admin 端补齐 + 删除按钮 + 级联 UI + 角色劳务组件

admin 会议管理:
- 新建 admin/AdminMeetings.vue (查看/删除/批量删除, 面包屑 首页/项目管理/会议管理)
- AdminLayout.vue 加 /admin/meetings 菜单
- router/index.js 加 admin-meetings + admin-meetings-detail 路由
- MeetingDetail.vue admin 删除按钮改 admin+manager 双角色可触发 (onAdminDelete 跳回按角色)

manager 会议管理:
- Meetings.vue 加批量删除 + 删除按钮 + 删除确认文案 (6 张表级联)
- MeetingDetail.vue 删除按钮 v-if 改 canDeleteMeeting = isAdmin || isManager

manager 项目管理:
- Projects.vue 加批量删除 + 删除项 + doDelete 改走 cascade (5 张项目表 + 会议链)
- ProjectsNew.vue style-alignment: page-card 居左 (max-width 1200px, 无 margin auto), form-actions 包在 el-form 内
- Projects.vue + Meetings.vue + AdminMeetings.vue 删页内冗余删除提示

store + 组件:
- store/user.js 加 isAdmin getter
- components/ProjectRoleSelect.vue 新建 (项目级角色劳务下拉, 接 roleLabor)

ry-vue3/src/views/manager/Projects.vue

@@ -78,6 +78,9 @@
         <el-button class="action-btn secondary" :disabled="!selection.length" @click="openBatch('activate')">
           批量开通<span v-if="selection.length" class="badge">{{ selection.length }}</span>
         </el-button>
+        <el-button v-if="canDelete" class="action-btn secondary" type="danger" :disabled="!selection.length" @click="onBatchDelete">
+          批量删除<span v-if="selection.length" class="badge">{{ selection.length }}</span>
+        </el-button>
       </div>
       <el-table :data="rows" v-loading="loading" stripe border @selection-change="onSel">
         <el-table-column type="selection" width="44" />
@@ -131,6 +134,7 @@
                     <el-dropdown-item command="exportExperts" divided>导出报名专家</el-dropdown-item>
                     <el-dropdown-item v-if="row.isPublished === '1' || row.publishUrl" command="activate" divided>开通</el-dropdown-item>
                     <el-dropdown-item v-if="row.isPublished === '1' || row.publishUrl" command="delAnn" divided>删除公告</el-dropdown-item>
+                    <el-dropdown-item v-if="canDelete" command="delete" divided>删除项目</el-dropdown-item>
                   </el-dropdown-menu>
                 </template>
               </el-dropdown>
@@ -269,7 +273,13 @@ function onAction(cmd, row) {
   else if (cmd === 'exportExperts') exportExperts(row)
   else if (cmd === 'activate') openActivate(row)
   else if (cmd === 'delAnn') openDeleteAnnouncement(row)
+  else if (cmd === 'delete') doDelete(row)
 }
+// 仅 admin / manager 可见删除按钮 (前端 v-if, 后端 controller 再兜底 role 校验)
+const canDelete = computed(() => {
+  const r = userStore.role
+  return r === 'admin' || r === 'manager'
+})
 function doCreateMeeting(row) { router.push(`/manager/meetings/new?projectId=${row.projectId}`) }
 function doAssign(row) {
   // 跳转独立子页面 /manager/projects/assign?projectId=X
@@ -277,18 +287,54 @@ function doAssign(row) {
 }
 function doEdit(row) { router.push(`/manager/projects/edit/${row.projectId}`) }
 
-// 删除项目（按需补充，原型无但需要）
+// 删除项目 (软删除 + 级联置 5 张项目表 + 项目下所有会议 is_deleted=1)
+// 后端 BizProjectController.remove 已强制 role in (admin, manager), 前端只做可见性 v-if
 async function doDelete(row) {
   try {
-    await ElMessageBox.confirm(`确认删除项目"${row.projectName}"？\n项目编号: ${row.projectNo}\n\n删除后无法恢复！`, '删除确认', { type: 'error', confirmButtonText: '确认删除', cancelButtonText: '取消' })
+    await ElMessageBox.confirm(
+      `确认删除项目"${row.projectName}"？\n项目编号: ${row.projectNo}\n\n` +
+      `此操作将级联软删除:\n` +
+      `· 项目主表 + 方案 + 执行方分配 + 支持方分配 + 评分 (5 张表)\n` +
+      `· 项目下所有会议 + 会议附件 + 参会人 + 监督员 + 执行人 + 审计日志 (6 张表)\n\n` +
+      `数据保留在库, 不再展示给前台用户, 审计追溯可查。`,
+      '删除确认',
+      { type: 'error', confirmButtonText: '确认软删除', cancelButtonText: '取消' }
+    )
     await bizDelete('project', row.projectId)
     ElMessage.success('已删除')
+    // 从 selection 里移除已删行, 避免批量按钮残留
+    selection.value = selection.value.filter(r => r.projectId !== row.projectId)
     load()
   } catch (e) {
     if (e !== 'cancel' && e !== 'close') ElMessage.error(e?.msg || '删除失败')
   }
 }
 
+// 批量软删除 (admin/manager)
+async function onBatchDelete() {
+  if (!selection.value.length) return ElMessage.warning('请先勾选项目')
+  try {
+    await ElMessageBox.confirm(
+      `确认批量软删除选中的 ${selection.value.length} 个项目？\n\n` +
+      `此操作将级联软删除每个项目下的:\n` +
+      `· 5 张项目表 (主表/方案/分配/支持方/评分)\n` +
+      `· 6 张会议表 (会议本身 + 附件 + 参会人 + 监督员 + 执行人 + 审计日志)\n\n` +
+      `数据保留, 不再展示给前台用户。`,
+      '批量删除确认',
+      { type: 'error', confirmButtonText: `确认删除 ${selection.value.length} 个`, cancelButtonText: '取消' }
+    )
+  } catch { return }
+  const ids = selection.value.map(r => r.projectId)
+  try {
+    await bizDelete('project', ids)
+    ElMessage.success(`已批量软删除 ${ids.length} 个项目`)
+    selection.value = []
+    load()
+  } catch (e) {
+    ElMessage.error(e?.msg || '批量删除失败')
+  }
+}
+
 function reset() { q.value = { sponsorAdminUserIds:[], execAdminUserIds:[], projectNo:'', projectName:'', projectForm:'', startTime:'', endTime:'', isFinished:'', isSettled:'', managerScore:'' }; page.pageNum = 1; load() }
 
 // 导出