JWT Authentication

For user-based authentication, use JWT tokens:

const bshEngine = new BshEngine({
  host: 'https://your-instance.com',
  jwtToken: 'access-token',
  refreshToken: 'refresh-token' // Optional, enables auto-refresh
});

The JWT token is sent as Authorization: Bearer <token>. Pair with a refresh token (refreshToken or refreshTokenFn) so the engine can renew expired access tokens and return meta.accessToken.