Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-09-05T22:29:56","request-id":"627a1782-3c0f-4bfe-bc01-e26721c349c4","client-request-id":"627a1782-3c0f-4bfe-bc01-e26721c349c4"}}}"