fix(storefront): use shared app-skeleton in category/search loading state

Category and Search pages still hand-rolled their infinite-scroll
loading skeleton (.skeleton-card/.skeleton-image/.skeleton-line
divs with their own hardcoded-hex shimmer animation) instead of the
shared app-skeleton primitive already used by catalog-container and
product-details-container. Swapped both to app-skeleton (shape=rect
for image/button, shape=text for lines), removed the now-dead
per-page shimmer CSS/hex colors. Closes KNOWN-ISSUES.md item 9.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/app/pages/category/category.component.html

@@ -20,17 +20,17 @@
 
       @if (loading() && items().length > 0) {
         @for (i of skeletonSlots; track i) {
-          <div class="item-card skeleton-card">
+          <div class="item-card skeleton-card" aria-hidden="true">
             <div class="item-link">
-              <div class="item-image skeleton-image"></div>
+              <app-skeleton shape="rect" class="item-image" height="auto" />
               <div class="item-details">
-                <div class="skeleton-line skeleton-title"></div>
-                <div class="skeleton-line skeleton-rating"></div>
-                <div class="skeleton-line skeleton-price"></div>
-                <div class="skeleton-line skeleton-stock"></div>
+                <app-skeleton shape="text" width="80%" height="16px" />
+                <app-skeleton shape="text" width="50%" height="12px" />
+                <app-skeleton shape="text" width="40%" height="18px" />
+                <app-skeleton shape="text" width="60px" height="6px" />
               </div>
             </div>
-            <div class="skeleton-btn"></div>
+            <app-skeleton shape="rect" class="skeleton-btn" height="42px" />
           </div>
         }
       }

src/app/pages/category/category.component.scss

@@ -310,59 +310,27 @@
   padding: 40px 20px;
 }
 
-// Skeleton loading cards
+// Skeleton loading cards (shimmer/animation owned by shared app-skeleton)
 .skeleton-card {
   pointer-events: none;
 
-  .skeleton-image {
-    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
-    background-size: 200% 100%;
-    animation: shimmer 1.5s infinite;
+  .item-image {
+    display: block;
+    aspect-ratio: 1 / 1;
   }
 
-  .skeleton-line {
-    border-radius: 6px;
-    background: linear-gradient(90deg, #e8e8e8 25%, #d8d8d8 50%, #e8e8e8 75%);
-    background-size: 200% 100%;
-    animation: shimmer 1.5s infinite;
-  }
-
-  .skeleton-title {
-    height: 16px;
-    width: 80%;
-  }
-
-  .skeleton-rating {
-    height: 12px;
-    width: 50%;
-  }
-
-  .skeleton-price {
-    height: 18px;
-    width: 40%;
-    margin-top: auto;
-  }
-
-  .skeleton-stock {
-    height: 6px;
-    width: 60px;
+  .item-details app-skeleton {
+    display: block;
+    margin-bottom: var(--space-sm, 8px);
   }
 
   .skeleton-btn {
-    height: 42px;
-    background: linear-gradient(90deg, #5a8a85 25%, #497671 50%, #5a8a85 75%);
-    background-size: 200% 100%;
-    animation: shimmer 1.5s infinite;
+    display: block;
     border-radius: 0 0 13px 13px;
     margin-top: -1px;
   }
 }
 
-@keyframes shimmer {
-  0% { background-position: 200% 0; }
-  100% { background-position: -200% 0; }
-}
-
 // Responsive
 @media (max-width: 1200px) {
   .items-grid {

src/app/pages/category/category.component.ts

@@ -12,10 +12,11 @@ import { SCROLL_THRESHOLD_PX, SCROLL_DEBOUNCE_MS, ITEMS_PER_PAGE } from '../../c
 import { ProductFacade } from '../../facades/platform/product.facade';
 import { ProductCardComponent } from '../../components/product-card/product-card.component';
 import { IconComponent } from '../../shared/ui/icon/icon.component';
+import { SkeletonComponent } from '../../shared/ui/skeleton/skeleton.component';
 
 @Component({
   selector: 'app-category',
-  imports: [RouterLink, LangRoutePipe, TranslatePipe, ProductCardComponent, IconComponent],
+  imports: [RouterLink, LangRoutePipe, TranslatePipe, ProductCardComponent, IconComponent, SkeletonComponent],
   templateUrl: './category.component.html',
   styleUrls: ['./category.component.scss'],
   changeDetection: ChangeDetectionStrategy.OnPush

src/app/pages/search/search.component.html

@@ -72,17 +72,17 @@
 
       @if (loading() && items().length > 0) {
         @for (i of skeletonSlots; track i) {
-          <div class="item-card skeleton-card">
+          <div class="item-card skeleton-card" aria-hidden="true">
             <div class="item-link">
-              <div class="item-image skeleton-image"></div>
+              <app-skeleton shape="rect" class="item-image" height="auto" />
               <div class="item-details">
-                <div class="skeleton-line skeleton-title"></div>
-                <div class="skeleton-line skeleton-rating"></div>
-                <div class="skeleton-line skeleton-price"></div>
-                <div class="skeleton-line skeleton-stock"></div>
+                <app-skeleton shape="text" width="80%" height="16px" />
+                <app-skeleton shape="text" width="50%" height="12px" />
+                <app-skeleton shape="text" width="40%" height="18px" />
+                <app-skeleton shape="text" width="60px" height="6px" />
               </div>
             </div>
-            <div class="skeleton-btn"></div>
+            <app-skeleton shape="rect" class="skeleton-btn" height="42px" />
           </div>
         }
       }

src/app/pages/search/search.component.scss

@@ -352,59 +352,27 @@
   text-align: center;
 }
 
-// Skeleton loading cards
+// Skeleton loading cards (shimmer/animation owned by shared app-skeleton)
 .skeleton-card {
   pointer-events: none;
 
-  .skeleton-image {
-    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
-    background-size: 200% 100%;
-    animation: shimmer 1.5s infinite;
+  .item-image {
+    display: block;
+    aspect-ratio: 1 / 1;
   }
 
-  .skeleton-line {
-    border-radius: 6px;
-    background: linear-gradient(90deg, #e8e8e8 25%, #d8d8d8 50%, #e8e8e8 75%);
-    background-size: 200% 100%;
-    animation: shimmer 1.5s infinite;
-  }
-
-  .skeleton-title {
-    height: 16px;
-    width: 80%;
-  }
-
-  .skeleton-rating {
-    height: 12px;
-    width: 50%;
-  }
-
-  .skeleton-price {
-    height: 18px;
-    width: 40%;
-    margin-top: auto;
-  }
-
-  .skeleton-stock {
-    height: 6px;
-    width: 60px;
+  .item-details app-skeleton {
+    display: block;
+    margin-bottom: var(--space-sm, 8px);
   }
 
   .skeleton-btn {
-    height: 42px;
-    background: linear-gradient(90deg, #5a8a85 25%, #497671 50%, #5a8a85 75%);
-    background-size: 200% 100%;
-    animation: shimmer 1.5s infinite;
+    display: block;
     border-radius: 0 0 13px 13px;
     margin-top: -1px;
   }
 }
 
-@keyframes shimmer {
-  0% { background-position: 200% 0; }
-  100% { background-position: -200% 0; }
-}
-
 @media (max-width: 768px) {
   .search-header h1 {
     font-size: var(--font-size-3xl, 1.5rem);

src/app/pages/search/search.component.ts

@@ -13,10 +13,11 @@ import { SEARCH_DEBOUNCE_MS, ITEMS_PER_PAGE, SCROLL_THRESHOLD_PX, SCROLL_DEBOUNC
 import { ProductFacade } from '../../facades/platform/product.facade';
 import { ProductCardComponent } from '../../components/product-card/product-card.component';
 import { IconComponent } from '../../shared/ui/icon/icon.component';
+import { SkeletonComponent } from '../../shared/ui/skeleton/skeleton.component';
 
 @Component({
   selector: 'app-search',
-  imports: [FormsModule, TranslatePipe, ProductCardComponent, IconComponent],
+  imports: [FormsModule, TranslatePipe, ProductCardComponent, IconComponent, SkeletonComponent],
   templateUrl: './search.component.html',
   styleUrls: ['./search.component.scss'],
   changeDetection: ChangeDetectionStrategy.OnPush