fix: 删除公告确认改用 ElMessageBox.confirm

- manager/Projects.vue: 删除空 body 的 el-dialog (header/footer 边框叠成两条线), 改用 ElMessageBox.confirm

- 合并 openDeleteAnnouncement/confirmDeleteAnn 为 deleteAnnouncement, 删无用 ref delAnnModalOpen/delAnnTargetRow

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

@@ -233,14 +233,6 @@
       </template>
     </el-dialog>
 
-    <!-- ============= 单行删除公告 modal ============= -->
-    <el-dialog v-model="delAnnModalOpen" title="您确定要删除公告吗?删除后无法恢复" width="420px" :show-close="false">
-      <template #footer>
-        <el-button type="primary" @click="confirmDeleteAnn">确定</el-button>
-        <el-button @click="delAnnModalOpen=false">取消</el-button>
-      </template>
-    </el-dialog>
-
     <!-- ============= 单行执行单位评分 modal（4 维度） ============= -->
     <el-dialog v-model="singleScoreModalOpen" title="执行单位评分" width="626px" :show-close="false">
       <table class="score-table" style="width:100%;border-collapse:collapse;font-size:13px">
@@ -329,7 +321,7 @@ function onAction(cmd, row) {
   else if (cmd === 'view') viewDetail(row)
   else if (cmd === 'edit') doEdit(row)
   else if (cmd === 'activate') openActivate(row)
-  else if (cmd === 'delAnn') openDeleteAnnouncement(row)
+  else if (cmd === 'delAnn') deleteAnnouncement(row)
   else if (cmd === 'rate') openSingleScore(row)
   else if (cmd === 'delete') doDelete(row)
 }
@@ -486,15 +478,13 @@ function confirmActivate() {
     .catch(() => ElMessage.error('开通失败'))
 }
 
-function openDeleteAnnouncement(row) {
-  delAnnTargetRow.value = row
-  delAnnModalOpen.value = true
-}
-function confirmDeleteAnn() {
-  if (!delAnnTargetRow.value) return
+async function deleteAnnouncement(row) {
+  try {
+    await ElMessageBox.confirm(`确定删除项目 ${row.projectNo} 的所有公告吗？删除后无法恢复`, '删除公告', { type: 'warning' })
+  } catch { return }
   // 删除公告: 后端专用端点, 将 3 个公示 URL 置 NULL (未发布由 URL 为空判定, 无独立 is_published 列)
-  request.delete(`/business/project/${delAnnTargetRow.value.projectId}/announcement`)
-    .then(() => { ElMessage.success(`已删除项目 ${delAnnTargetRow.value.projectNo} 的公告`); delAnnModalOpen.value = false; load() })
+  request.delete(`/business/project/${row.projectId}/announcement`)
+    .then(() => { ElMessage.success(`已删除项目 ${row.projectNo} 的公告`); load() })
     .catch(() => ElMessage.error('删除失败'))
 }
 
@@ -614,8 +604,6 @@ const closeModalOpen = ref(false)
 const closeTargetRow = ref(null)
 const activateModalOpen = ref(false)
 const activateTargetRow = ref(null)
-const delAnnModalOpen = ref(false)
-const delAnnTargetRow = ref(null)
 const singleScoreModalOpen = ref(false)
 const singleScoreTargetRow = ref(null)
 const singleScoreForm = reactive({ qualityScore: 0, responseScore: 0, cooperationScore: 0, complianceScore: 0 })