Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-10-15T11:08:35","request-id":"1a9361b2-23d6-445a-b3ae-3c8a0d650470","client-request-id":"1a9361b2-23d6-445a-b3ae-3c8a0d650470"}}}"