Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-05-09T19:05:03","request-id":"6c441f32-9e24-490a-a890-2c94085e0fe9","client-request-id":"6c441f32-9e24-490a-a890-2c94085e0fe9"}}}"