feat: 增强开奖与设置控制器的币种支持功能

引入 CurrencyResolver，用于在 DrawCurrentController、DrawResultShowController 与 DrawResultsIndexController 中统一处理币种代码解析。
更新 DrawHallSnapshotBuilder 与 DrawResultViewService 的构建方法，新增币种代码参数支持，确保开奖相关功能中的币种处理一致性。
增强 SettingIndexController：新增允许访问的 KV 配置分组校验。
在 OddsStreamService、PlayConfigStreamService 与 RiskCapStreamService 中新增广播功能，用于在玩法目录变更时推送更新通知。
新增测试用例，验证风险限额发布的广播行为。

app/Http/Controllers/Api/V1/Draw/DrawResultShowController.php

@@ -6,6 +6,7 @@ use App\Models\Draw;
 use App\Lottery\ErrorCode;
 use App\Support\ApiResponse;
 use Illuminate\Http\Request;
+use App\Support\CurrencyResolver;
 use Illuminate\Http\JsonResponse;
 use App\Http\Controllers\Controller;
 use App\Services\Draw\DrawResultViewService;
@@ -42,7 +43,8 @@ final class DrawResultShowController extends Controller
             );
         }
 
-        $payload = $this->viewer->summarizeDraw($draw);
+        $currencyCode = CurrencyResolver::resolve($request, $request->lotteryPlayer());
+        $payload = $this->viewer->summarizeDraw($draw, $currencyCode);
         if ($payload === null) {
             return ApiResponse::error(
                 trans('api.not_found', [], $request->lotteryLocale()),