实现业务附件受控入库 V1（05-28-business-attachment-governance-v1）

client/src/pages/MobilePurchaseRequestDetailPage.tsx

@@ -2,6 +2,7 @@ import { useParams } from "react-router-dom";
 import { useQuery } from "@tanstack/react-query";
 import { fetchPurchaseRequestDetail } from "../api/purchaseRequests";
 import { MobileDetailHeader } from "../components/mobile/MobileDetailHeader";
+import { AttachmentGovernanceBadges } from "../components/common/AttachmentGovernanceBadges";
 import { StatusBadge } from "../components/common/StatusBadge";
 import { PageScaffold } from "../components/patterns/PageScaffold";
 import {
@@ -161,6 +162,7 @@ export function MobilePurchaseRequestDetailPage() {
                   <div className="mt-1 text-xs text-zinc-500">
                     {joinBusinessMeta([formatBytes(attachment.fileSize), attachment.uploader?.name, formatDate(attachment.createdAt)])}
                   </div>
+                  <AttachmentGovernanceBadges attachment={attachment} className="mt-2" />
                 </article>
               )) : <div className="mobile-empty-state">暂无附件</div>}
             </div>