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

app/Models/AdminUser.php

@@ -2,14 +2,14 @@
 
 namespace App\Models;
 
-use App\Support\AdminPermissionBridge;
-use Illuminate\Database\Eloquent\Relations\BelongsToMany;
-use Illuminate\Foundation\Auth\User as Authenticatable;
-use Illuminate\Notifications\Notifiable;
-use Illuminate\Support\Facades\DB;
 use Laravel\Sanctum\HasApiTokens;
+use Illuminate\Support\Facades\DB;
+use App\Support\AdminPermissionBridge;
+use Illuminate\Notifications\Notifiable;
+use Illuminate\Foundation\Auth\User as Authenticatable;
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
 
-class AdminUser extends Authenticatable
+final class AdminUser extends Authenticatable
 {
     use HasApiTokens;
     use Notifiable;