- implement factories into models

- Model class refactored in relations

app/Models/Zip.php

@@ -1,12 +1,15 @@
 <?php
 
-namespace App;
+namespace App\Models;
 
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Support\Str;
 
 class Zip extends Model
 {
+    use HasFactory;
+
     protected $guarded = ['id'];
 
     public $incrementing = false;