feat(auth): implement authentication endpoints with registration and login functionality

database/factories/UserFactory.php

@@ -24,9 +24,12 @@ class UserFactory extends Factory
      */
     public function definition(): array
     {
+        $email = fake()->unique()->safeEmail();
+
         return [
             'name' => fake()->name(),
-            'email' => fake()->unique()->safeEmail(),
+            'username' => fake()->unique()->userName(),
+            'email' => $email,
             'mobile' => fake()->unique()->numerify('09#########'),
             'email_verified_at' => now(),
             'password' => static::$password ??= Hash::make('password'),