stock check, variants in cart, variant buttons in product page

app/Catalog/ProductListingPage.php

@@ -17,7 +17,14 @@
  */
 final class ProductListingPage
 {
-    private const PER_PAGE = 12;
+    private const PER_PAGE = 40;
+
+    /** Category pages rarely have enough products to fill a page, so this
+     * ceiling is high enough to act as "no pagination" in practice — the
+     * pagination component self-hides via hasPages() when everything fits.
+     * If a category ever exceeds it, pagination reappears as a safety net
+     * rather than silently truncating results. */
+    private const CATEGORY_PER_PAGE = 200;
 
     public function __construct(
         private readonly ProductService $products,
@@ -33,6 +40,7 @@ public function __construct(
     public function build(ProductListing $listing, Closure $url, ?int $collectionId = null, ?string $query = null): array
     {
         $filters = $listing->filters($collectionId);
+        $perPage = $collectionId !== null ? self::CATEGORY_PER_PAGE : self::PER_PAGE;
 
         // Listing reads from the Meilisearch index via ProductService/
         // ProductSearchService, not Eloquent. Both return a
@@ -45,12 +53,12 @@ public function build(ProductListing $listing, Closure $url, ?int $collectionId
                 query: $query,
                 filters: $filters,
                 sort: $listing->sort,
-                perPage: self::PER_PAGE,
+                perPage: $perPage,
                 page: $listing->page,
             )
             : $this->products->list(
                 filters: $filters,
-                perPage: self::PER_PAGE,
+                perPage: $perPage,
                 page: $listing->page,
                 sort: $listing->sort,
             );