平台订单：同步失败原因TOP5补齐可同步重试入口

resources/views/admin/platform_orders/index.blade.php

@@ -243,6 +243,8 @@
                     <div>
                         <a class="link" href="{!! request()->fullUrlWithQuery(['sync_error_keyword' => $reason, 'sync_status' => 'failed', 'page' => null]) !!}">{{ $reason }}</a>
                         <span class="muted">（{{ $item['count'] }}）</span>
+                        <span class="muted">｜</span>
+                        <a class="link" href="{!! request()->fullUrlWithQuery(['sync_error_keyword' => $reason, 'sync_status' => null, 'syncable_only' => '1', 'page' => null]) !!}">切到可同步重试</a>
                     </div>
                 @endforeach
             </div>

tests/Feature/AdminPlatformOrderSyncFailedReasonTop5RetryLinkTest.php

@@ -0,0 +1,79 @@
+<?php
+
+namespace Tests\Feature;
+
+use App\Models\Merchant;
+use App\Models\Plan;
+use App\Models\PlatformOrder;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Tests\TestCase;
+
+class AdminPlatformOrderSyncFailedReasonTop5RetryLinkTest 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_sync_failed_reason_top5_shows_retry_link_to_syncable_only_scope(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $merchant = Merchant::query()->firstOrFail();
+        $plan = Plan::query()->create([
+            'code' => 'sync_failed_reason_retry_link_test',
+            'name' => '同步失败原因重试链接测试套餐',
+            'billing_cycle' => 'monthly',
+            'price' => 10,
+            'list_price' => 10,
+            'status' => 'active',
+            'sort' => 10,
+            'published_at' => now(),
+        ]);
+
+        // 构造一条失败原因数据，触发 TOP5
+        PlatformOrder::query()->create([
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'order_no' => 'PO_SYNC_FAILED_REASON_0001',
+            'order_type' => 'new_purchase',
+            'status' => 'activated',
+            'payment_status' => 'paid',
+            'plan_name' => $plan->name,
+            'billing_cycle' => $plan->billing_cycle,
+            'period_months' => 1,
+            'quantity' => 1,
+            'payable_amount' => 10,
+            'paid_amount' => 10,
+            'placed_at' => now(),
+            'paid_at' => now(),
+            'activated_at' => now(),
+            'meta' => [
+                'subscription_activation_error' => [
+                    'message' => '模拟失败原因TOP5',
+                    'at' => now()->toDateTimeString(),
+                    'admin_id' => 1,
+                ],
+            ],
+        ]);
+
+        $page = $this->get('/admin/platform-orders');
+        $page->assertOk();
+
+        // 失败原因链接存在
+        $page->assertSee('sync_status=failed', false);
+        $page->assertSee('sync_error_keyword=', false);
+
+        // “切到可同步重试”链接存在：应包含 syncable_only=1，并不应包含 sync_status=failed
+        $page->assertSee('切到可同步重试');
+        $page->assertSee('syncable_only=1', false);
+        $page->assertDontSee('sync_status=failed&syncable_only=1', false);
+    }
+}