修复证书下载后PDF状态不同步

frontend/src/views/AdminCertificates.vue

@@ -376,6 +376,7 @@ async function previewCertificate(row: AdminCertificate) {
 
 async function downloadCertificate(row: AdminCertificate) {
   downloadingCertificateId.value = row.id;
+  let downloaded = false;
   const loading = ElLoading.service({
     lock: true,
     text: "当前查询人数较多，请稍后。。。",
@@ -383,12 +384,21 @@ async function downloadCertificate(row: AdminCertificate) {
   });
   try {
     await downloadFile(`/admin/certificates/${row.id}/download`, `${row.certificate_no}.pdf`);
+    row.pdf_status = "generated";
+    downloaded = true;
   } catch (error: any) {
     ElMessage.error(await apiErrorMessage(error, "PDF生成失败，请稍后再试"));
   } finally {
     loading.close();
     downloadingCertificateId.value = null;
   }
+  if (downloaded) {
+    try {
+      await loadCertificates();
+    } catch {
+      ElMessage.warning("PDF已生成并下载，但列表状态同步失败，请稍后重试");
+    }
+  }
 }
 
 async function voidCertificate(row: AdminCertificate) {