src/pages/api/auth/me.js

export const GET = async ({ cookies }) => {
  const token = cookies.get('auth_token')?.value;

  if (!token) {
    return new Response(JSON.stringify({ user: null }), {
      status: 200,
      headers: { 'Content-Type': 'application/json' }
    });
  }

  try {
    const userData = JSON.parse(Buffer.from(token, 'base64').toString('utf-8'));
    return new Response(JSON.stringify({ user: userData }), {
      status: 200,
      headers: { 'Content-Type': 'application/json' }
    });
  } catch (err) {
    return new Response(JSON.stringify({ user: null }), {
      status: 200,
      headers: { 'Content-Type': 'application/json' }
    });
  }
};