Merge remote-tracking branch 'origin/feature/kingdee-attachment-sync' into feature/bfi-api-rate

# Conflicts:
#	src/api/payment/invoiceApplication.js
#	src/api/payment/invoiceReceipt.js
#	src/api/payment/paymentApplication.js
#	src/api/settlement/formalSettlement.js
#	src/views/payment/invoice-application.vue
#	src/views/payment/invoice-receipt.vue
#	src/views/payment/payment-application-form.vue
#	src/views/payment/payment-application.vue
#	src/views/settlement/formal-settlement.vue

src/views/payment/payment-application-form.vue

@@ -281,8 +281,18 @@
           <el-table-column label="操作" width="220" fixed="right" align="center">
             <template #default="{ row, $index }">
               <div class="payment-form-page__invoice-actions">
-                <el-link type="primary" @click="viewInvoiceAttachment(row)">查看</el-link>
-                <el-link type="primary" @click="downloadInvoiceAttachment(row)">下载</el-link>
+                <el-link
+                  type="primary"
+                  :disabled="kingdeeAttachmentBusy"
+                  @click="viewInvoiceAttachment(row)"
+                  >查看</el-link
+                >
+                <el-link
+                  type="primary"
+                  :disabled="kingdeeAttachmentBusy"
+                  @click="downloadInvoiceAttachment(row)"
+                  >下载</el-link
+                >
                 <el-link
                   v-if="!readonly"
                   type="danger"
@@ -663,6 +673,11 @@ import {
 import { readSettlementTransfer, removeSettlementTransfer } from '@/utils/settlement-transfer';
 import { downloadFileByUrl } from '@/utils/util';
 import { submitMkApprovalFlow } from '@/utils/mk-approval';
+import {
+  downloadKingdeeInvoiceFile,
+  isKingdeePathAttachment,
+  viewKingdeeInvoiceFile,
+} from '@/utils/kingdee-attachment';
 import PdfPreview from '@/components/pdf-preview/main.vue';
 
 const attachmentViewerPlugins = [
@@ -743,6 +758,8 @@ export default {
       form: emptyForm(),
       amountSyncing: false,
       transferPayload: null,
+      // 金蝶侧发票附件查看/下载进行中（行组级 loading 守卫）
+      kingdeeAttachmentBusy: false,
       referenceRows: [],
       paymentRecords: [],
       referenceVisible: false,
@@ -1584,8 +1601,19 @@ export default {
         this.attachmentFileName(this.invoiceAttachment(row)) || `${row.invoiceNo || '发票'}.pdf`
       );
     },
-    viewInvoiceAttachment(row) {
+    async viewInvoiceAttachment(row) {
       const attachment = this.invoiceAttachment(row);
+      // 金蝶侧附件（path 型）经后端代理 A801-2 预览，OSS 直链维持本地预览组件
+      if (isKingdeePathAttachment(attachment)) {
+        if (this.kingdeeAttachmentBusy) return;
+        this.kingdeeAttachmentBusy = true;
+        try {
+          await viewKingdeeInvoiceFile(row.invoiceNo, this.invoiceAttachmentName(row));
+        } finally {
+          this.kingdeeAttachmentBusy = false;
+        }
+        return;
+      }
       if (!this.attachmentFileUrl(attachment)) {
         this.$message.warning('当前发票暂无可查看附件');
         return;
@@ -1595,8 +1623,20 @@ export default {
         [attachment]
       );
     },
-    downloadInvoiceAttachment(row) {
-      const url = this.invoiceAttachmentUrl(row);
+    async downloadInvoiceAttachment(row) {
+      const attachment = this.invoiceAttachment(row);
+      // 金蝶侧附件（path 型）经后端代理 A801-2 下载，OSS 直链维持前端直连下载
+      if (isKingdeePathAttachment(attachment)) {
+        if (this.kingdeeAttachmentBusy) return;
+        this.kingdeeAttachmentBusy = true;
+        try {
+          await downloadKingdeeInvoiceFile(row.invoiceNo, this.invoiceAttachmentName(row));
+        } finally {
+          this.kingdeeAttachmentBusy = false;
+        }
+        return;
+      }
+      const url = this.attachmentFileUrl(attachment);
       if (!url) {
         this.$message.warning('当前发票暂无可下载附件');
         return;