refactor：拆分 API 路由与请求校验，统一 final 类和代码风格

database/seeders/DrawDemoSeeder.php

@@ -2,14 +2,14 @@
 
 namespace Database\Seeders;
 
-use App\Lottery\DrawResultBatchStatus;
-use App\Lottery\DrawStatus;
-use App\Models\Draw;
-use App\Models\DrawResultBatch;
-use App\Models\DrawResultItem;
-use App\Services\Draw\DrawPrizeLayout;
 use Carbon\Carbon;
+use App\Models\Draw;
+use App\Lottery\DrawStatus;
+use App\Models\DrawResultItem;
+use App\Models\DrawResultBatch;
 use Illuminate\Database\Seeder;
+use App\Lottery\DrawResultBatchStatus;
+use App\Services\Draw\DrawPrizeLayout;
 
 /**
  * 【本地演示】写入若干条 `draws` + 一条带完整 23 组开奖，便于前端大厅 / 开奖结果联调。
@@ -22,7 +22,7 @@ use Illuminate\Database\Seeder;
  * php artisan db:seed --class="Database\\Seeders\\DrawDemoSeeder"
  * ```
  */
-class DrawDemoSeeder extends Seeder
+final class DrawDemoSeeder extends Seeder
 {
     public function run(): void
     {