refactor(billing): unify BMPA audit to use snapshot fields

app/Http/Controllers/Admin/PlatformOrderController.php

@@ -891,8 +891,10 @@ class PlatformOrderController extends Controller
                 'at' => now()->toDateTimeString(),
                 'admin_id' => $admin->id,
                 'subscription_id' => $subscription->id,
-                'paid_amount' => (float) ($order->paid_amount ?? 0),
-                'payable_amount' => (float) ($order->payable_amount ?? 0),
+                'snapshot' => [
+                    'paid_amount' => (float) ($order->paid_amount ?? 0),
+                    'payable_amount' => (float) ($order->payable_amount ?? 0),
+                ],
                 'note' => '手动点击订单详情【标记支付并生效】（包含订阅同步）',
             ];
             data_set($meta, 'audit', $audit);

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

@@ -865,8 +865,12 @@
                     $snapPaid = data_get($snap, 'paid_amount');
                     $snapRefund = data_get($snap, 'refund_total');
                     if ($snapPaid !== null || $snapRefund !== null) {
-                        $pairs[] = 'paid=¥' . number_format((float) ($snapPaid ?? 0), 2);
-                        $pairs[] = 'refund=¥' . number_format((float) ($snapRefund ?? 0), 2);
+                        if ($snapPaid !== null) {
+                            $pairs[] = 'paid=¥' . number_format((float) $snapPaid, 2);
+                        }
+                        if ($snapRefund !== null) {
+                            $pairs[] = 'refund=¥' . number_format((float) $snapRefund, 2);
+                        }
 
                         // 剩余字段：key=value
                         foreach ($snap as $k => $v) {

tests/Feature/AdminPlatformOrderMarkPaidAndActivateAuditSnapshotShouldRenderTest.php

@@ -0,0 +1,70 @@
+<?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 AdminPlatformOrderMarkPaidAndActivateAuditSnapshotShouldRenderTest 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_mark_paid_and_activate_should_write_snapshot_paid_amount_and_show_page_can_render_it(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $merchant = Merchant::query()->firstOrFail();
+        $plan = Plan::query()->create([
+            'code' => 'mark_paid_audit_snapshot_plan',
+            'name' => '标记支付并生效审计快照测试套餐',
+            'billing_cycle' => 'monthly',
+            'price' => 30,
+            'list_price' => 30,
+            'status' => 'active',
+            'sort' => 10,
+            'published_at' => now(),
+        ]);
+
+        $order = PlatformOrder::query()->create([
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'order_no' => 'PO_MARK_PAID_AUDIT_SNAPSHOT_0001',
+            'order_type' => 'new_purchase',
+            'status' => 'pending',
+            'payment_status' => 'unpaid',
+            'plan_name' => $plan->name,
+            'billing_cycle' => $plan->billing_cycle,
+            'period_months' => 1,
+            'quantity' => 1,
+            'payable_amount' => 30,
+            'paid_amount' => 0,
+            'placed_at' => now(),
+        ]);
+
+        $this->post('/admin/platform-orders/' . $order->id . '/mark-paid-and-activate')
+            ->assertRedirect();
+
+        $order->refresh();
+
+        $this->assertSame(30.0, (float) data_get($order->meta, 'audit.0.snapshot.paid_amount'));
+        $this->assertSame(30.0, (float) data_get($order->meta, 'audit.0.snapshot.payable_amount'));
+
+        $this->get('/admin/platform-orders/' . $order->id)
+            ->assertOk()
+            ->assertSee('paid=¥30.00')
+            ->assertSee('payable_amount=30');
+    }
+}