feat: add FlightImage model and update Flight image relation

app/Models/Flight.php

@@ -156,5 +156,16 @@ class Flight extends Model
     {
         return $this->hasMany(Favorite::class);
     }
+    public function images()
+    {
+        return $this->hasMany(FlightImage::class)
+            ->orderBy('sort_order');
+    }
+
+    public function coverImage()
+    {
+        return $this->hasOne(FlightImage::class)
+            ->where('is_default', true);
+    }
 
 }

app/Models/FlightImage.php

@@ -0,0 +1,53 @@
+<?php
+
+/**
+ * Created by Reliese Model.
+ */
+
+namespace App\Models;
+
+use Carbon\Carbon;
+use Illuminate\Database\Eloquent\Model;
+
+/**
+ * Class FlightImage
+ *
+ * @property int $id
+ * @property int $flight_id
+ * @property int $file_id
+ * @property int|null $sort_order
+ * @property bool|null $is_default
+ * @property Carbon|null $created_at
+ * @property Carbon|null $updated_at
+ *
+ * @package App\Models
+ */
+class FlightImage extends Model
+{
+	protected $table = 'flight_images';
+	public static $snakeAttributes = false;
+
+	protected $casts = [
+		'flight_id' => 'int',
+		'file_id' => 'int',
+		'sort_order' => 'int',
+		'is_default' => 'bool'
+	];
+
+	protected $fillable = [
+		'flight_id',
+		'file_id',
+		'sort_order',
+		'is_default'
+	];
+
+    public function flight()
+    {
+        return $this->belongsTo(Flight::class);
+    }
+
+    public function file()
+    {
+        return $this->belongsTo(File::class);
+    }
+}