feat: update cart service and components to handle productVariantId, improve item removal and addition feedback

src/app/core/layout/store-layout/store-layout.component.ts

@@ -54,6 +54,7 @@ export class StoreLayoutComponent implements OnInit {
     }
 
     return {
+      productVariantId: item.product_variant_id,
       imageUrl: item.product?.imagen ?? null,
       product,
       originalPrice: null,

src/app/core/services/cart/cart.service.spec.ts

@@ -75,8 +75,8 @@ describe('CartService', () => {
   });
 
   it('should add item and update signal', () => {
-    service.addItem(10, 2).subscribe((cart) => {
-      expect(cart).toEqual(mockCart);
+    service.addItem(10, 2).subscribe((res) => {
+      expect(res.data).toEqual(mockCart);
       expect(service.cart()).toEqual(mockCart);
     });
 

src/app/core/services/cart/cart.service.ts

@@ -31,7 +31,7 @@ export class CartService {
       );
   }
 
-  addItem(productVariantId: number, cantidad: number): Observable<Cart> {
+  addItem(productVariantId: number, cantidad: number): Observable<ApiResponse<Cart>> {
     return this.http
       .post<ApiResponse<Cart>>(
         `${this.tenantApiUrl}/cart/items`,
@@ -39,8 +39,7 @@ export class CartService {
         { withCredentials: true }
       )
       .pipe(
-        map((response) => response.data),
-        tap((cart) => this.cartState.set(cart))
+        tap((response) => this.cartState.set(response.data))
       );
   }