feat(admin): 密码校验统一与后台 API/设置增强

- 管理端账号/代理/站点等密码最短长度统一为 6 位
- LotterySettings、审计日志展示、币种与报表接口等小修复
- 补充设置批量更新、注单、校验错误等相关测试

app/Http/Controllers/Api/V1/Admin/AdminSettingController.php

@@ -19,6 +19,11 @@ use Illuminate\Support\Facades\DB;
  */
 final class AdminSettingController extends Controller
 {
+    public function deployment(): JsonResponse
+    {
+        return ApiResponse::success(LotterySettings::deploymentSnapshot());
+    }
+
     public function index(AdminSettingIndexRequest $request): JsonResponse
     {
         $validated = $request->validated();