/* Tela de login: autentica e redireciona para o app. */
el('form-login').addEventListener('submit', async (event) => {
  event.preventDefault();
  const erroBox = el('login-erro');
  erroBox.textContent = '';

  try {
    await API.post('/api/auth/login', {
      username: el('login-username').value,
      password: el('login-password').value
    });
    window.location.href = '/';
  } catch (error) {
    erroBox.textContent = error.message;
  }
});