Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-05-24T02:36:21","request-id":"eea83b64-94d2-4a39-80f3-083f525342db","client-request-id":"eea83b64-94d2-4a39-80f3-083f525342db"}}}"