Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-03-05T17:33:09","request-id":"33609411-9b19-46df-ad8d-5b7c0e32abc4","client-request-id":"33609411-9b19-46df-ad8d-5b7c0e32abc4"}}}"