test: add PDP/PLP add to cart dialog e2e test

projects/storefrontapp-e2e-cypress/cypress/e2e/accessibility/add-to-cart-dialog.a11y-e2e.cy.ts

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+/*
+ * SPDX-FileCopyrightText: 2025 SAP Spartacus team <[email protected]>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import * as siteContextSelector from '../../helpers/site-context-selector';
+
+/**
+ * This test checks accessibility concerns on the add to cart modal (PLP Page) using Access Continuum
+ */
+describe('Add to Cart Modal Accessibility', () => {
+  beforeEach(() => {
+    cy.a11yContinuumSetup();
+  });
+
+  context('Add to Cart (PDP)', () => {
+    it('Item Added to Cart Dialog', () => {
+      cy.visit(siteContextSelector.PRODUCT_PATH_2);
+      cy.get('cx-add-to-cart button[type=submit]').click();
+      cy.get('cx-added-to-cart-dialog .cx-modal-content cx-cart-item');
+      cy.get('cx-added-to-cart-dialog').a11yRunContinuumTest();
+    });
+  });
+});