refactor(checkout): materialize purchase item snapshots at start

app/Domains/Sale/Services/AdminAppSaleService.php

@@ -51,14 +51,7 @@ class AdminAppSaleService
     {
         return Purchase::query()
             ->where('tenant_codigo', $tenant->codigo)
-            ->with([
-                'items',
-                'cart' => fn ($query) => $query->withTrashed(),
-                'cart.items.catalogItem',
-                'cart.items.variant.catalogItem',
-                'cart.items.variant.eventDates',
-                'cart.items.variant.eventDate',
-            ])
+            ->with('items')
             ->findOrFail($saleId);
     }
 
@@ -154,15 +147,9 @@ class AdminAppSaleService
             )
             ->select('compras.*')
             ->selectRaw(
-                'CASE WHEN compras.status IN (?, ?) '
-                .'THEN (SELECT COALESCE(SUM(cart_items.cantidad), 0) FROM carrito_items AS cart_items '
-                .'WHERE cart_items.cart_id = compras.cart_id) '
-                .'ELSE (SELECT COALESCE(SUM(purchase_items.cantidad), 0) FROM compra_items AS purchase_items '
-                .'WHERE purchase_items.compra_id = compras.id) END AS quantity',
-                [
-                    Purchase::STATUS_CREATED,
-                    Purchase::STATUS_PENDING_PAYMENT,
-                ],
+                '(SELECT COALESCE(SUM(purchase_items.cantidad), 0) '
+                .'FROM compra_items AS purchase_items '
+                .'WHERE purchase_items.compra_id = compras.id) AS quantity',
             )
             ->withCount('tickets')
             ->orderBy($sortColumns[$sortBy], $sortDirection)
@@ -199,16 +186,11 @@ class AdminAppSaleService
 
     protected function quantityExpression(): string
     {
-        // El fallback se resuelve en SQL para poder ordenar por cantidad antes de paginar;
-        // los ítems consolidados de la compra tienen prioridad sobre los del carrito de origen.
         return <<<'SQL'
             COALESCE(
                 (SELECT SUM(compra_items.cantidad)
                  FROM compra_items
                  WHERE compra_items.compra_id = compras.id),
-                (SELECT SUM(carrito_items.cantidad)
-                 FROM carrito_items
-                 WHERE carrito_items.cart_id = compras.cart_id),
                 0
             ) AS quantity
             SQL;