feat(admin): 仪表盘补齐订阅到期治理入口（7天内到期/已过期）

tests/Feature/AdminDashboardBillingWorkbenchShouldIncludeSubscriptionExpiryQuickLinksTest.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace Tests\Feature;
+
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Tests\TestCase;
+
+class AdminDashboardBillingWorkbenchShouldIncludeSubscriptionExpiryQuickLinksTest extends TestCase
+{
+    use RefreshDatabase;
+
+    protected function loginAsPlatformAdmin(): void
+    {
+        $this->seed();
+
+        $this->post('/admin/login', [
+            'email' => 'platform.admin@demo.local',
+            'password' => 'Platform@123456',
+        ])->assertRedirect('/admin');
+    }
+
+    public function test_dashboard_should_include_subscription_expiry_governance_quick_links(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $res = $this->get('/admin');
+        $res->assertOk();
+
+        $res->assertSee('订阅到期治理');
+
+        $res->assertSee('href="/admin/site-subscriptions?expiry=expiring_7d&back=%2Fadmin"', false);
+        $res->assertSee('7天内到期', false);
+
+        $res->assertSee('href="/admin/site-subscriptions?expiry=expired&back=%2Fadmin"', false);
+        $res->assertSee('已过期', false);
+
+        $res->assertDontSee('&amp;back=', false);
+    }
+}