feat(gov): 同步订阅成功写入 audit 便于追溯

app/Http/Controllers/Admin/PlatformOrderController.php

@@ -353,9 +353,21 @@ class PlatformOrderController extends Controller
         try {
             $subscription = $service->activateOrder($order->id, $admin->id);
 
-            // 同步成功：清理失败记录（若存在）
+            // 同步成功：清理失败记录（若存在）+ 写入审计记录
             $meta = (array) ($order->meta ?? []);
             data_forget($meta, 'subscription_activation_error');
+
+            $audit = (array) (data_get($meta, 'audit', []) ?? []);
+            $audit[] = [
+                'action' => 'activate_subscription',
+                'scope' => 'single',
+                'at' => now()->toDateTimeString(),
+                'admin_id' => $admin->id,
+                'subscription_id' => $subscription->id,
+                'note' => '手动点击订单详情【同步订阅】',
+            ];
+            data_set($meta, 'audit', $audit);
+
             $order->meta = $meta;
             $order->save();
         } catch (\Throwable $e) {