feat: add Province model and update City model relations

app/Models/City.php

@@ -16,6 +16,7 @@ use Illuminate\Database\Eloquent\SoftDeletes;
  * 
  * @property int $id
  * @property int $county_id
+ * @property int $province_id
  * @property string $name
  * @property int $status
  * @property Carbon $created_at
@@ -23,7 +24,9 @@ use Illuminate\Database\Eloquent\SoftDeletes;
  * @property string|null $deleted_at
  * 
  * @property Country $country
+ * @property Province $province
  * @property Collection|Tour[] $tours
+ * @property Collection|User[] $users
  *
  * @package App\Models
  */
@@ -35,11 +38,13 @@ class City extends Model
 
 	protected $casts = [
 		'county_id' => 'int',
+		'province_id' => 'int',
 		'status' => 'int'
 	];
 
 	protected $fillable = [
 		'county_id',
+		'province_id',
 		'name',
 		'status'
 	];
@@ -49,8 +54,18 @@ class City extends Model
 		return $this->belongsTo(Country::class, 'county_id');
 	}
 
+	public function province()
+	{
+		return $this->belongsTo(Province::class);
+	}
+
 	public function tours()
 	{
 		return $this->hasMany(Tour::class, 'destination_city_id');
 	}
+
+	public function users()
+	{
+		return $this->hasMany(User::class);
+	}
 }