feat: implement product creation workflow with variants, attribute definitions, and validation logic

app/Domains/Catalog/Models/AttributeOption.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace App\Domains\Catalog\Models;
+
+use Illuminate\Database\Eloquent\Attributes\Fillable;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+#[Fillable([
+    'attribute_id',
+    'value',
+    'label',
+    'sort_order',
+    'metadata',
+])]
+class AttributeOption extends Model
+{
+    use HasFactory;
+
+    protected $table = 'attribute_options';
+
+    /**
+     * @return array<string, string>
+     */
+    protected function casts(): array
+    {
+        return [
+            'sort_order' => 'integer',
+            'metadata' => 'array',
+        ];
+    }
+
+    /**
+     * @return BelongsTo<Attribute, $this>
+     */
+    public function attribute(): BelongsTo
+    {
+        return $this->belongsTo(Attribute::class, 'attribute_id');
+    }
+}