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

app/Services/Draw/DrawRngRunner.php

@@ -2,14 +2,14 @@
 
 namespace App\Services\Draw;
 
-use App\Lottery\DrawResultBatchStatus;
-use App\Lottery\DrawResultSourceType;
-use App\Lottery\DrawStatus;
-use App\Models\Draw;
-use App\Models\DrawResultBatch;
-use App\Models\DrawResultItem;
 use Carbon\Carbon;
+use App\Models\Draw;
+use App\Lottery\DrawStatus;
+use App\Models\DrawResultItem;
+use App\Models\DrawResultBatch;
 use Illuminate\Support\Facades\DB;
+use App\Lottery\DrawResultSourceType;
+use App\Lottery\DrawResultBatchStatus;
 
 /**
  * 按配置执行 RNG，写入 {@see DrawResultBatch} / {@see DrawResultItem}。