feat(admin): subscription show failed reason top3

tests/Feature/AdminSiteSubscriptionShowTest.php

@@ -90,6 +90,7 @@ class AdminSiteSubscriptionShowTest extends TestCase
             ->assertSee('关联订单总数')
             ->assertSee('可同步（已支付+已生效+未同步）')
             ->assertSee('未同步（无记录）')
+            ->assertSee('失败原因Top3')
             ->assertSee('关联平台订单')
             ->assertSee('PO_SUB_SHOW_0001')
             ->assertSee('同步时间')