=== 04 의 오랜 미검증: authenticator 가 무엇인가 ===
--- 문서 형태 (글로브가 sudo 앞에서 펼쳐진다)
zsh:1: no matches found: /etc/letsencrypt/renewal/*.conf
--- sudo 안에서 펼치게 고친 형태
/etc/letsencrypt/renewal/auth.hyeonworks.com.conf:authenticator = dns-cloudflare
/etc/letsencrypt/renewal/auth.hyeonworks.com.conf:dns_cloudflare_credentials = /etc/letsencrypt/cloudflare.ini
/etc/letsencrypt/renewal/auth.hyeonworks.com.conf:server = https://acme-v02.api.letsencrypt.org/directory

=== 토큰 검증 (값은 안 찍는다) ===
토큰 길이 0자
{"success":false,"errors":[{"code":6003,"message":"Invalid request headers","error_chain":[{"code":6111,"message":"Invalid format for Authorization header"}]}],"messages":[],"result":null}