feat: 支持开奖设置走系统配置并补充相关测试

app/Services/Draw/DrawPublishService.php

@@ -7,6 +7,7 @@ use App\Models\AdminUser;
 use App\Lottery\DrawStatus;
 use App\Models\DrawResultBatch;
 use Illuminate\Support\Facades\DB;
+use App\Services\LotterySettings;
 use App\Lottery\DrawResultBatchStatus;
 
 /**
@@ -67,7 +68,10 @@ final class DrawPublishService
 
     private function applyPublishedToDraw(Draw $draw, DrawResultBatch $batch): Draw
     {
-        $cooldownMinutes = (int) config('lottery.draw.cooldown_minutes', 15);
+        $cooldownMinutes = max(0, (int) LotterySettings::get(
+            'draw.cooldown_minutes',
+            (int) config('lottery.draw.cooldown_minutes', 15),
+        ));
         if ($cooldownMinutes > 0) {
             $draw->forceFill([
                 'status' => DrawStatus::Cooldown->value,