Add tests for ticket validity and event date formatting

- Create TicketValiditySchemaTest to verify database schema for ticket validity.
- Update CatalogModelsTest to include tests for event date attributes and selection options.
- Introduce EventDateTextFormatterTest for formatting event dates in Spanish.
- Refactor EventModelsTest to include validity time relationships.
- Add SaleDetailResourceTest to ensure correct serialization of purchase items.
- Enhance TicketTest with validity time checks and status management.
- Implement ValidityTimeResourceTest to validate resource output for different validity types.
- Add ValidityTimeTest to verify casting and validity checks for validity time types.

app/Domains/Cart/Resources/CartItemResource.php

@@ -3,6 +3,8 @@
 namespace App\Domains\Cart\Resources;
 
 use App\Domains\Cart\Models\CartItem;
+use App\Domains\Catalog\Enums\InventoryPolicy;
+use App\Domains\Catalog\Models\Variant;
 use Illuminate\Http\Request;
 use Illuminate\Http\Resources\Json\JsonResource;
 
@@ -36,6 +38,16 @@ class CartItemResource extends JsonResource
             'product' => $selectedItem === null ? null : [
                 'nombre' => $selectedItem->getName(),
                 'imagen' => $imageUrl,
+                'variants' => $this->catalogItem->visibleVariants($this->variant_id)
+                    ->map(fn (Variant $variant): array => [
+                        'id' => $variant->id,
+                        'precio' => $this->formatMoney($variant->getPrice()),
+                        'stock_tecnico' => $this->catalogItem->inventory_policy === InventoryPolicy::Unlimited
+                            ? null
+                            : $variant->inventory->availableStock(),
+                        'values' => $variant->selectionOptions($this->catalogItem->itemAttributes),
+                    ])
+                    ->values(),
             ],
         ];
     }