Migrate backend to Porto architecture and fix minor bugs

- Fully transitioned the backend to the Porto architectural pattern
- Improved code organization and maintainability
- Fixed minor bugs and inconsistencies

app/Ship/Abstracts/Models/UserModel.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Ship\Abstracts\Models;
+
+// use Illuminate\Contracts\Auth\MustVerifyEmail;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Foundation\Auth\User as LaravelAuthenticate;
+use Illuminate\Notifications\Notifiable;
+use Laravel\Sanctum\HasApiTokens;
+
+abstract class UserModel extends LaravelAuthenticate
+{
+    use HasApiTokens, HasFactory, Notifiable;
+}