chore(admin-ui): simplify import histories export label

resources/views/admin/products/import_histories.blade.php

@@ -25,7 +25,7 @@
             <div class="page-header-subtitle">集中复盘总台视角的商品导入结果、失败明细与文件状态（面向运营）。</div>
         </div>
         <div class="page-header-actions">
-            <a href="{{ '/admin/products/import-histories/export' . ($exportHistoryQuery ? ('?' . $exportHistoryQuery) : '') }}" class="btn btn-secondary btn-sm">导出当前筛选 CSV</a>
+            <a href="{{ '/admin/products/import-histories/export' . ($exportHistoryQuery ? ('?' . $exportHistoryQuery) : '') }}" class="btn btn-secondary btn-sm">导出 CSV</a>
             <a href="/admin/products/import-histories" class="btn btn-secondary btn-sm">清空筛选</a>
         </div>
     </div>

tests/Feature/AdminBusinessPagesTest.php

@@ -207,7 +207,7 @@ class AdminBusinessPagesTest extends TestCase
             ->assertOk()
             ->assertSee('商品导入历史')
             ->assertSee('筛选导入历史')
-            ->assertSee('导出当前筛选 CSV');
+            ->assertSee('导出 CSV');
     }
 
     public function test_admin_product_summary_stats_match_export_summary_for_same_filters(): void