feat(platform-orders): 摘要卡增加有退款/无退款订单数（含测试）

app/Http/Controllers/Admin/PlatformOrderController.php

@@ -294,6 +294,16 @@ class PlatformOrderController extends Controller
                     ->whereRaw("JSON_EXTRACT(meta, '$.payment_summary.total_amount') IS NULL")
                     ->whereRaw("JSON_EXTRACT(meta, '$.payment_receipts[0].amount') IS NULL")
                     ->count(),
+                'refund_orders' => (clone $baseQuery)
+                    ->where(function (Builder $q) {
+                        $q->whereRaw("JSON_EXTRACT(meta, '$.refund_summary.total_amount') IS NOT NULL")
+                          ->orWhereRaw("JSON_EXTRACT(meta, '$.refund_receipts[0].amount') IS NOT NULL");
+                    })
+                    ->count(),
+                'no_refund_orders' => (clone $baseQuery)
+                    ->whereRaw("JSON_EXTRACT(meta, '$.refund_summary.total_amount') IS NULL")
+                    ->whereRaw("JSON_EXTRACT(meta, '$.refund_receipts[0].amount') IS NULL")
+                    ->count(),
                 'total_receipt_amount' => $totalReceiptAmount,
                 // 对账差额：回执总额 - 订单已付总额（当前筛选范围）
                 'reconciliation_delta' => (float) ($totalReceiptAmount - $totalPaidAmount),

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

@@ -154,6 +154,11 @@
         <div class="metric-number">¥{{ number_format((float) ($summaryStats['total_refunded_amount'] ?? 0), 2) }}</div>
         <div class="muted muted-xs">基于 meta.refund_summary.total_amount（缺省回退汇总）</div>
     </div>
+    <div class="card">
+        <h3>有退款订单 / 无退款订单</h3>
+        <div class="metric-number">{{ $summaryStats['refund_orders'] ?? 0 }} / {{ $summaryStats['no_refund_orders'] ?? 0 }}</div>
+        <div class="muted muted-xs">口径：refund_summary.total_amount 存在或 refund_receipts 有记录</div>
+    </div>
     <div class="card">
         <h3>有回执订单 / 回执总额</h3>
         <div class="metric-number">{{ $summaryStats['receipt_orders'] ?? 0 }} / ¥{{ number_format((float) ($summaryStats['total_receipt_amount'] ?? 0), 2) }}</div>

tests/Feature/AdminPlatformOrderRefundSummaryCardTest.php

@@ -0,0 +1,93 @@
+<?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 AdminPlatformOrderRefundSummaryCardTest 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_platform_orders_page_shows_refund_orders_summary_card(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $merchant = Merchant::query()->firstOrFail();
+        $plan = Plan::query()->create([
+            'code' => 'refund_summary_card_test',
+            'name' => '退款摘要卡测试套餐',
+            'billing_cycle' => 'monthly',
+            'price' => 10,
+            'list_price' => 10,
+            'status' => 'active',
+            'sort' => 10,
+            'published_at' => now(),
+        ]);
+
+        // 有退款：summary
+        PlatformOrder::query()->create([
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'order_no' => 'PO_REFUND_CARD_HAS',
+            'order_type' => 'new_purchase',
+            'status' => 'activated',
+            'payment_status' => 'refunded',
+            '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' => [
+                'refund_summary' => [
+                    'count' => 1,
+                    'total_amount' => 10.00,
+                ],
+            ],
+        ]);
+
+        // 无退款
+        PlatformOrder::query()->create([
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'order_no' => 'PO_REFUND_CARD_NONE',
+            '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' => [],
+        ]);
+
+        $this->get('/admin/platform-orders')
+            ->assertOk()
+            ->assertSee('有退款订单 / 无退款订单')
+            ->assertSee('1')
+            ->assertSee('/')
+            ->assertSee('1');
+    }
+}