Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-10-10T08:37:05","request-id":"e4a47c08-cafd-48f3-a021-dbf2daf33814","client-request-id":"e4a47c08-cafd-48f3-a021-dbf2daf33814"}}}"