web_Admision/back/database/seeders/RoleSeeder.php

<?php

namespace Database\Seeders;

use Illuminate\Database\Seeder;
use Spatie\Permission\Models\Role;
use Spatie\Permission\Models\Permission;
use Illuminate\Support\Facades\Schema;

class RoleSeeder extends Seeder
{
    public function run(): void
    {
        // Evita problemas si se vuelve a ejecutar
        app()[\Spatie\Permission\PermissionRegistrar::class]->forgetCachedPermissions();

        // Roles base
        $roles = [
            'usuario',
            'administrador',
            'superadmin',
        ];

        foreach ($roles as $role) {
            Role::firstOrCreate([
                'name' => $role,
                'guard_name' => 'web',
            ]);
        }
    }
}