feat(main-carousel): enhance image handling for responsive design

src/app/core/services/tenant.interface.ts

@@ -75,7 +75,7 @@ export interface TenantEvent {
 }
 
 export interface WebsiteExtras {
-  carousel?: string[];
+  carousel?: (string | { desktop: string; mobile: string })[];
   immersiveHeroCarousel?: string[];
   immersiveHero?: {
     eyebrow: string;

src/app/shared/components/main-carousel/main-carousel.component.html

@@ -12,18 +12,21 @@
 >
   <div class="main-carousel__viewport" aria-live="off">
     @for (image of images(); track $index; let index = $index) {
-      <img
-        class="main-carousel__image"
-        [class.main-carousel__image--active]="index === activeIndex()"
-        [attr.src]="imageSource(image, index)"
-        [alt]="imageAlt(index)"
-        [attr.aria-hidden]="index === activeIndex() ? null : 'true'"
-        loading="eager"
-        [attr.fetchpriority]="index === activeIndex() ? 'high' : 'low'"
-        draggable="false"
-        (load)="handleImageLoad(index)"
-        (error)="handleImageError(index)"
-      />
+      <picture>
+        <source media="(max-width: 576px)" [attr.srcset]="mobileImageSource(image, index)" />
+        <img
+          class="main-carousel__image"
+          [class.main-carousel__image--active]="index === activeIndex()"
+          [attr.src]="imageSource(image, index)"
+          [alt]="imageAlt(index)"
+          [attr.aria-hidden]="index === activeIndex() ? null : 'true'"
+          loading="eager"
+          [attr.fetchpriority]="index === activeIndex() ? 'high' : 'low'"
+          draggable="false"
+          (load)="handleImageLoad(index)"
+          (error)="handleImageError(index)"
+        />
+      </picture>
     }
   </div>
 

src/app/shared/components/main-carousel/main-carousel.component.scss

@@ -17,9 +17,7 @@
   &__viewport {
     position: relative;
     width: 100%;
-    aspect-ratio: 4 / 1;
-    min-height: 9rem;
-    max-height: 25rem;
+    aspect-ratio: 355 / 90;
   }
 
   &__image {

src/app/shared/components/main-carousel/main-carousel.component.spec.ts

@@ -18,12 +18,20 @@ class TestHostComponent {
   readonly images = ['/images/one.webp', '/images/two.webp', '/images/three.webp'];
 }
 
+@Component({
+  imports: [MainCarouselComponent],
+  template: `<app-main-carousel [images]="images" />`,
+})
+class ResponsiveTestHostComponent {
+  readonly images = [{ desktop: '/images/desktop.webp', mobile: '/images/mobile.webp' }];
+}
+
 describe('MainCarouselComponent', () => {
   let fixture: ComponentFixture<TestHostComponent>;
 
   beforeEach(async () => {
     await TestBed.configureTestingModule({
-      imports: [TestHostComponent],
+      imports: [TestHostComponent, ResponsiveTestHostComponent],
     }).compileComponents();
 
     fixture = TestBed.createComponent(TestHostComponent);
@@ -41,6 +49,19 @@ describe('MainCarouselComponent', () => {
     expect(images[0].classList).toContain('main-carousel__image--active');
   });
 
+  it('usa la variante móvil del crop cuando está disponible', () => {
+    const responsiveFixture = TestBed.createComponent(ResponsiveTestHostComponent);
+    responsiveFixture.detectChanges();
+
+    const picture = responsiveFixture.nativeElement.querySelector('picture') as HTMLPictureElement;
+    const source = picture.querySelector('source') as HTMLSourceElement;
+    const image = picture.querySelector('img') as HTMLImageElement;
+
+    expect(source.getAttribute('media')).toBe('(max-width: 576px)');
+    expect(source.getAttribute('srcset')).toBe('/images/mobile.webp');
+    expect(image.getAttribute('src')).toBe('/images/desktop.webp');
+  });
+
   it('carga las imágenes secuencialmente y prioriza la imagen visible', () => {
     const images = fixture.nativeElement.querySelectorAll(
       '.main-carousel__image',

src/app/shared/components/main-carousel/main-carousel.component.ts

@@ -11,6 +11,9 @@ import {
   signal,
 } from '@angular/core';
 import { isPlatformBrowser } from '@angular/common';
+import type { WebsiteExtras } from '../../../core/services/tenant.interface';
+
+type CarouselImage = NonNullable<WebsiteExtras['carousel']>[number];
 
 @Component({
   selector: 'app-main-carousel',
@@ -26,7 +29,7 @@ export class MainCarouselComponent {
   private readonly settledIndexes = signal<ReadonlySet<number>>(new Set());
   private firstImageReadyEmitted = false;
 
-  readonly images = input.required<readonly string[]>();
+  readonly images = input.required<readonly CarouselImage[]>();
   readonly imageAlts = input<readonly string[]>([]);
   readonly autoSlideInterval = input(5000);
   readonly ariaLabel = input('Imágenes destacadas');
@@ -91,13 +94,21 @@ export class MainCarouselComponent {
     this.paused.set(paused);
   }
 
-  protected imageSource(image: string, index: number): string | null {
+  protected imageSource(image: CarouselImage, index: number): string | null {
     const shouldLoad =
       this.loadedIndexes().has(index) ||
       index === this.sequentialLoadIndex() ||
       index === this.activeIndex();
 
-    return shouldLoad ? image : null;
+    return shouldLoad ? (typeof image === 'string' ? image : image.desktop) : null;
+  }
+
+  protected mobileImageSource(image: CarouselImage, index: number): string | null {
+    if (typeof image === 'string' || this.imageSource(image, index) === null) {
+      return null;
+    }
+
+    return image.mobile;
   }
 
   protected handleImageLoad(index: number): void {