test(web): e2e profile flow with BMR/TDEE assertions

- e2e/profile.spec.ts: fresh user signs up, opens /profile via the home CTA,
  fills the Michele PRD persona values (49, MALE, 170cm, 76kg, SEDENTARY)
  and asserts the summary panel shows BMR 1583 kcal and TDEE 1899 kcal
- profile-form.tsx: each Field receives an explicit `id` so <Label htmlFor>
  binds correctly — Playwright's getByLabel and screen-reader navigation
  both rely on this association

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/web/e2e/profile.spec.ts

@@ -0,0 +1,40 @@
+import { expect, test } from '@playwright/test';
+
+function uniqueEmail(): string {
+  const ts = Date.now();
+  const rand = Math.floor(Math.random() * 1e6);
+  return `e2e-profile-${ts}-${rand}@ketopath.test`;
+}
+
+test('profile flow — submit returns BMR/TDEE for the Michele PRD persona', async ({ page }) => {
+  const email = uniqueEmail();
+  const password = 'Password!123';
+  const name = 'Michele E2E';
+
+  // Sign-up gives us an authenticated session
+  await page.goto('/sign-up');
+  await page.getByLabel('Nome').fill(name);
+  await page.getByLabel('Email').fill(email);
+  await page.getByLabel('Password').fill(password);
+  await page.getByRole('button', { name: 'Crea account' }).click();
+  await page.waitForURL('/');
+
+  // Open the profile page from the home CTA
+  await page.getByRole('link', { name: 'Completa il tuo profilo' }).click();
+  await page.waitForURL('/profile');
+
+  // Fill the form with the "Michele" PRD persona values
+  await page.getByLabel('Età').fill('49');
+  await page.getByLabel('Sesso').selectOption('MALE');
+  await page.getByLabel('Altezza (cm)').fill('170');
+  await page.getByLabel('Peso iniziale (kg)').fill('76');
+  await page.getByLabel('Peso attuale (kg)').fill('76');
+  await page.getByLabel('Peso obiettivo (kg)').fill('70');
+  await page.getByLabel('Livello di attività').selectOption('SEDENTARY');
+  await page.getByRole('button', { name: 'Salva profilo' }).click();
+
+  // BMR/TDEE summary panel becomes visible after a successful save
+  await expect(page.getByText('Calcolo personalizzato')).toBeVisible();
+  await expect(page.getByText('1583 kcal')).toBeVisible(); // BMR Michele
+  await expect(page.getByText('1899 kcal')).toBeVisible(); // TDEE = 1582.5 × 1.2
+});