feat(recommendations): collect demographics and advance age cohorts

apps/web/e2e/scenarios.spec.ts

@@ -48,6 +48,15 @@ test('settings expose crossfade and loudness normalization', async ({ page }) =>
   const slider = page.getByRole('slider', { name: /Кроссфейд/ });
   await slider.fill('4');
   await expect(page.getByText('Кроссфейд, 4 с')).toBeVisible();
+  await page.getByRole('button', { name: 'Настроить рекомендации' }).click();
+  await page.getByRole('button', { name: 'Мужской', exact: true }).click();
+  await page.getByRole('button', { name: '13–19', exact: true }).click();
+  const form = page.getByRole('heading', { name: 'Что вы любите слушать?' }).locator('../..');
+  await form.getByRole('button', { name: 'Сохранить', exact: true }).click();
+  await page.getByRole('button', { name: 'Настроить рекомендации' }).click();
+  await expect(page.getByRole('button', { name: 'Мужской', exact: true })).toHaveAttribute('aria-pressed', 'true');
+  await expect(page.getByRole('button', { name: '13–19', exact: true })).toHaveAttribute('aria-pressed', 'true');
+
 });
 test('9. login page switches between Russian and English', async ({ page }) => {
   await page.goto('/login');