feat(purchase): add checkout expiration settings and reservation status to purchase items

- Introduced a new configuration file for purchase settings, including checkout and payment expiration times.
- Added a migration to include a `reservation_status` column in the `compra_items` table, defaulting to 'active' and updating existing records based on purchase status.
- Created a migration to add an `expires_at` timestamp to the `compras` table, updating it for existing records based on their status.
- Scoped unique indexes in the `carritos` table to only active carts, adding virtual columns for active user and guest tokens.
- Implemented a console command to expire overdue purchases and release stock reservations, scheduled to run every minute.
- Added tests for Google token exchange and login functionality, ensuring proper cart handling and user authentication.
- Updated purchase-related tests to reflect changes in item handling and customer data validation.

.env.example

@@ -3,6 +3,11 @@ APP_ENV=production
 APP_KEY=
 APP_DEBUG=false
 APP_URL=http://localhost
+
+PURCHASE_CHECKOUT_EXPIRATION_MINUTES=30
+PURCHASE_QR_EXPIRATION_MINUTES=15
+PURCHASE_TELEPAGOS_EXPIRATION_MINUTES=30
+PURCHASE_TRANSFER_EXPIRATION_MINUTES=1440
 FRONTEND_URL=http://localhost:4200
 
 APP_LOCALE=en