Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-07-22T09:41:19","request-id":"d074a763-917d-41b2-b3e9-7fc0a7c2a2ff","client-request-id":"d074a763-917d-41b2-b3e9-7fc0a7c2a2ff"}}}"