document.getElementById('login-form').addEventListener('submit', async (e) => { e.preventDefault(); const username = document.getElementById('username').value; const password = document.getElementById('password').value; try { const response = await API.request('POST', '/auth/login', { username, password }); localStorage.setItem('sessionToken', response.token); window.location.href = '/'; } catch (err) { document.getElementById('login-error').textContent = 'Login failed: ' + err.message; } });