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

config/broadcasting.php

@@ -1,7 +1,6 @@
 <?php
 
 return [
-
     /*
     |--------------------------------------------------------------------------
     | Default Broadcaster
@@ -29,7 +28,6 @@ return [
     */
 
     'connections' => [
-
         'reverb' => [
             'driver' => 'reverb',
             'key' => env('REVERB_APP_KEY'),
@@ -76,7 +74,5 @@ return [
         'null' => [
             'driver' => 'null',
         ],
-
     ],
-
 ];