Add audit trail for mark-paid-and-activate SOP

app/Http/Controllers/Admin/PlatformOrderController.php

@@ -471,6 +471,21 @@ class PlatformOrderController extends Controller
 
             $meta = (array) ($order->meta ?? []);
             data_forget($meta, 'subscription_activation_error');
+
+            // 审计：标记支付并生效（并已同步订阅）
+            $audit = (array) (data_get($meta, 'audit', []) ?? []);
+            $audit[] = [
+                'action' => 'mark_paid_and_activate',
+                'scope' => 'single',
+                'at' => now()->toDateTimeString(),
+                'admin_id' => $admin->id,
+                'subscription_id' => $subscription->id,
+                'paid_amount' => (float) ($order->paid_amount ?? 0),
+                'payable_amount' => (float) ($order->payable_amount ?? 0),
+                'note' => '手动点击订单详情【标记支付并生效】（包含订阅同步）',
+            ];
+            data_set($meta, 'audit', $audit);
+
             $order->meta = $meta;
             $order->save();
         } catch (\Throwable $e) {