Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-01-14T18:53:54","request-id":"aa6068ef-bf73-499b-a9eb-2dfb26b87231","client-request-id":"aa6068ef-bf73-499b-a9eb-2dfb26b87231"}}}"