Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2025-12-08T23:37:55","request-id":"2b81f47b-380c-4309-a9e3-f2bbf0842920","client-request-id":"2b81f47b-380c-4309-a9e3-f2bbf0842920"}}}"