Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-02-28T22:53:59","request-id":"27334f1c-d61e-4c49-a579-303c728ba4d9","client-request-id":"27334f1c-d61e-4c49-a579-303c728ba4d9"}}}"