feat: add factory for models

app/Models/Gallery.php

@@ -2,12 +2,18 @@
 
 namespace App\Models;
 
+use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 
 class Gallery extends Model
 {
+    use HasFactory;
 
     protected $fillable = ['user_id', 'path'];
     public $timestamps = false;
 
+    public function uploadables()
+    {
+        return $this->hasMany(Uploadable::class);
+    }
 }