feat: implement user registration functionality with validation and response handling

app/Domains/Auth/Services/RegisterUserService.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Domains\Auth\Services;
+
+use App\Domains\Auth\Models\User;
+
+class RegisterUserService
+{
+    /**
+     * @param  array{nombre_apellido: string, email: string, password: string}  $data
+     */
+    public function register(array $data): User
+    {
+        return User::query()->create([
+            'nombre_apellido' => $data['nombre_apellido'],
+            'email' => $data['email'],
+            'password' => $data['password'],
+        ]);
+    }
+}