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

config/filesystems.php

@@ -1,7 +1,6 @@
 <?php
 
 return [
-
     /*
     |--------------------------------------------------------------------------
     | Default Filesystem Disk
@@ -29,7 +28,6 @@ return [
     */
 
     'disks' => [
-
         'local' => [
             'driver' => 'local',
             'root' => storage_path('app/private'),
@@ -59,7 +57,6 @@ return [
             'throw' => false,
             'report' => false,
         ],
-
     ],
 
     /*
@@ -76,5 +73,4 @@ return [
     'links' => [
         public_path('storage') => storage_path('app/public'),
     ],
-
 ];