feat: add scene settings feature

app/Models/Scene.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Scene extends Model
+{
+    protected $fillable = ['name', 'image_path', 'video_path', 'sound_path', 'order', 'is_active'];
+
+    protected $casts = [
+        'is_active' => 'boolean',
+        'order' => 'integer',
+    ];
+
+    protected $appends = ['image_url', 'video_url', 'sound_url', 'has_video'];
+
+    public function getImageUrlAttribute(): ?string
+    {
+        return $this->image_path ? asset('storage/' . $this->image_path) : null;
+    }
+
+    public function getVideoUrlAttribute(): ?string
+    {
+        return $this->video_path ? asset('storage/' . $this->video_path) : null;
+    }
+
+    public function getSoundUrlAttribute(): ?string
+    {
+        return $this->sound_path ? asset('storage/' . $this->sound_path) : null;
+    }
+
+    // Whether this scene can be shown as a video (the "تبدیل صحنه به ویدیو" toggle).
+    public function getHasVideoAttribute(): bool
+    {
+        return !empty($this->video_path);
+    }
+}