Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-04-13T19:33:58","request-id":"06c5d2ec-9f77-4762-907e-e725150a4b64","client-request-id":"06c5d2ec-9f77-4762-907e-e725150a4b64"}}}"