Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-08-15T08:18:11","request-id":"482dfdd8-1cc0-44f8-858f-4bb630a7843c","client-request-id":"482dfdd8-1cc0-44f8-858f-4bb630a7843c"}}}"