feat: 采购订单自动生成到货通知单功能

在采购订单查看页面新增"生成到货通知单"按钮，已审核的采购订单可一键生成到货通知单，
自动携带供应商信息和未到货物料明细行。

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

erp-frontend-vue/src/api/purchaseOrder.ts

@@ -173,6 +173,11 @@ export function exportPurchaseOrder(params: PurchaseOrderQuery): Promise<Blob> {
   return request.post('/erp/po/order/export', params, { responseType: 'blob' })
 }
 
+// 根据采购订单生成到货通知单
+export function genArrivalNotice(orderId: number): Promise<number> {
+  return request.post(`/erp/po/order/genArrivalNotice/${orderId}`).then((res: any) => res.data)
+}
+
 // ============ 供应商 API（使用 MOM md_vendor，表 erp_po_supplier 在 my_mes 中未建） ============
 
 export function getPoSupplierList(params?: { supplierName?: string; contact1?: string; pageNum?: number; pageSize?: number }): Promise<{ rows: PoSupplier[]; total: number }> {

erp-frontend-vue/src/views/Purchasing/Order/form.vue

@@ -28,6 +28,7 @@
               <el-button @click="handleSwitchToEdit">编辑</el-button>
               <el-button type="success" @click="handleApprove" :disabled="form.status !== 'PREPARE'">审核</el-button>
               <el-button type="warning" @click="handleUnapprove" :disabled="form.status !== 'APPROVED'">反审核</el-button>
+              <el-button type="info" @click="handleGenArrivalNotice" :disabled="form.status !== 'APPROVED'">生成到货通知单</el-button>
               <el-button @click="handlePrint">打印</el-button>
               <el-button @click="toggleHeaderCollapse">{{ headerCollapsed ? '展开' : '收起' }}</el-button>
             </template>
@@ -379,6 +380,7 @@ import {
   approvePurchaseOrder,
   unapprovePurchaseOrder,
   genPurchaseOrderCode,
+  genArrivalNotice,
   getPoSupplierList,
   getLeadInList,
   STATUS_MAP,
@@ -817,6 +819,18 @@ async function handleUnapprove() {
   }
 }
 
+// ============ Generate arrival notice ============
+async function handleGenArrivalNotice() {
+  if (!form.orderId) return
+  try {
+    await ElMessageBox.confirm('确认根据当前采购订单生成到货通知单吗？', '生成到货通知单', { type: 'info' })
+    const noticeId = await genArrivalNotice(form.orderId)
+    ElMessage.success('到货通知单生成成功')
+  } catch (error: any) {
+    if (error !== 'cancel') console.error('生成到货通知单失败:', error)
+  }
+}
+
 // ============ View-mode actions ============
 function handleNewFromView() { router.push('/purchasing/order/new') }
 function handleSwitchToEdit() {