fix: use blob response for excel export auth and secure adjust route

inventory-web/src/views/stock/stocktake/index.vue

@@ -748,11 +748,32 @@ const closeOverlays = () => {
 }
 
 // --- 导出 Excel 逻辑 (调用后端API) ---
-const exportToExcel = () => {
-  // 调用后端API下载盘点报告
-  const baseUrl = import.meta.env.VITE_APP_BASE_API || ''
-  window.open(`${baseUrl}/v1/inbound/stock/export-stocktake`, '_blank')
-  ElMessage.success('正在下载盘点报告...')
+const exportToExcel = async () => {
+  try {
+    ElMessage.info('正在生成盘点报告，请稍候...');
+    // 使用项目封装的 request 发送请求，确保自动携带 JWT Token
+    const res: any = await request({
+      url: '/v1/inbound/stock/export-stocktake',
+      method: 'get',
+      responseType: 'blob' as any // 核心：接收二进制文件流
+    });
+    
+    // 触发静默下载
+    const blob = new Blob([res], { type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' });
+    const url = window.URL.createObjectURL(blob);
+    const link = document.createElement('a');
+    link.href = url;
+    const dateStr = new Date().toISOString().split('T')[0];
+    link.download = `盘点差异报告_${dateStr}.xlsx`;
+    document.body.appendChild(link);
+    link.click();
+    document.body.removeChild(link);
+    window.URL.revokeObjectURL(url);
+    ElMessage.success('报告导出成功');
+  } catch (error) {
+    console.error('导出失败:', error);
+    ElMessage.error('导出失败，请重试');
+  }
 }
 
 const filteredList = computed(() => {