fix(variant): simplify getName method and add test for variant without catalog attributes

app/Domains/Catalog/Models/Variant.php

@@ -79,20 +79,7 @@ class Variant extends Model
 
     public function getName(): string
     {
-        $name = $this->catalogItem->nombre;
-        $this->loadMissing('definitions.itemAttribute.attribute');
-        $definitions = $this->definitions
-            ->map(function (VariantDefinition $definition): ?string {
-                $attributeName = $definition->itemAttribute?->attribute?->nombre;
-
-                return $attributeName
-                    ? "{$attributeName}: {$definition->value}"
-                    : $definition->value;
-            })
-            ->filter()
-            ->implode(', ');
-
-        return $definitions === '' ? $name : "{$name} ({$definitions})";
+        return $this->catalogItem->nombre;
     }
 
     public function getMinimumUseDate(): ?CarbonInterface