feat: add theme

app/Models/Scene.php

@@ -3,16 +3,22 @@
 namespace App\Models;
 
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
 
 class Scene extends Model
 {
-    protected $fillable = ['name', 'image_path', 'video_path', 'sound_path', 'order', 'is_active'];
+    protected $fillable = ['theme_id', 'name', 'image_path', 'video_path', 'sound_path', 'order', 'is_active'];
 
     protected $casts = [
         'is_active' => 'boolean',
         'order' => 'integer',
     ];
 
+    public function theme(): BelongsTo
+    {
+        return $this->belongsTo(Theme::class);
+    }
+
     protected $appends = ['image_url', 'video_url', 'sound_url', 'has_video'];
 
     public function getImageUrlAttribute(): ?string