Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-02-25T12:46:37","request-id":"71e1fb75-343a-4bc3-b799-8021f9f58664","client-request-id":"71e1fb75-343a-4bc3-b799-8021f9f58664"}}}"