Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-03-14T19:33:32","request-id":"84daace6-17c7-4d93-80c0-45d6b2d7d51b","client-request-id":"84daace6-17c7-4d93-80c0-45d6b2d7d51b"}}}"