Add getDefaultCustomerGroupOptions to BO customer create page

Expose the list of options of the customer form's default group dropdown
so campaigns can assert which customer groups are displayed.

Used by the PrestaShop core regression test for issue #28977.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: PrestaEdit

src/interfaces/BO/customers/create.ts

@@ -9,6 +9,7 @@ export interface BOCustomersCreatePageInterface extends BOBasePagePageInterface
 
   createEditB2BCustomer(page: Page, customerData: FakerCustomer): Promise<string>;
   createEditCustomer(page: Frame | Page, customerData: FakerCustomer, waitForNavigation?: boolean): Promise<string>;
+  getDefaultCustomerGroupOptions(page: Frame | Page): Promise<string[]>;
   getRequiredInputErrorMessage(page: Frame | Page, input:string): Promise<string>;
   enableGuestAccount(page: Frame | Page, guestAccount: boolean): Promise<void>;
   isDefaultCustomerGroupDisabled(page: Frame | Page): Promise<boolean>;

src/versions/develop/pages/BO/customers/create.ts

@@ -184,6 +184,15 @@ class BOCustomersCreatePage extends BOBasePage implements BOCustomersCreatePageI
     return this.elementVisible(page, `${this.defaultCustomerGroupSelect}[disabled]`, 2000);
   }
 
+  /**
+   * Get the list of options available in the default customer group dropdown
+   * @param page {Frame|Page} Browser tab
+   * @return {Promise<string[]>}
+   */
+  async getDefaultCustomerGroupOptions(page: Frame | Page): Promise<string[]> {
+    return page.locator(`${this.defaultCustomerGroupSelect} option`).allTextContents();
+  }
+
   /**
    * Get required input error message
    * @param page  {Frame|Page} Browser tab