task-266/267(admin.html观感对齐): 店铺数据任务改每店铺卡片(单文件下载/删除/批量/合计)+筛选权限对齐

admin-frontend-vue/src/pages/tasks/shop-data-download.ts

@@ -9,6 +9,22 @@ export interface ShopDataDownloadJob {
   errorCount?: number
 }
 
+/** 从 Content-Disposition 解析单文件下载名（rfc5987 优先），失败回默认名。 */
+export function shopDataFilenameFromDisposition(disposition: string | undefined, fallback: string): string {
+  const text = typeof disposition === 'string' ? disposition : ''
+  const encoded = /filename\*=UTF-8''([^;]+)/i.exec(text)
+  if (encoded) {
+    try {
+      const decoded = decodeURIComponent(encoded[1])
+      if (decoded.trim()) return decoded.trim()
+    } catch {
+      // 回退普通 filename
+    }
+  }
+  const plain = /filename="?([^";]+)"?/i.exec(text)
+  return plain && plain[1] ? plain[1].trim() : fallback
+}
+
 function finitePositive(value: unknown): number | null {
   const number = typeof value === 'number' && Number.isFinite(value)
     ? value