=== ① /oauth2/authorization/keycloak 로 시작 ===
도착: https://auth.hyeonworks.com/realms/keycloak-patterns/protocol/openid-connect/auth?response
바이트: 7021
form action: https://auth.hyeonworks.com/realms/keycloak-patterns/login-actions/authenticate?session_code=ySbuIX9Mo31v8XcKl

=== ② 자격 제출 ===
결과: 200 https://app1.hyeonworks.com/
본문 앞: <!doctype html>
<html lang="ko">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>AP3 

=== ③ 토큰 경계 ===
{"pattern":"AP3-backend-for-frontend","principal":"labuser","accessTokenStoredOnServer":true,"refreshTokenStoredOnServer":true,"browserTokenCount":0,"csrfProtectionEnabled":true}

=== ④ 쿠키 (값은 길이만) ===
auth.hyeonworks.com          KC_AUTH_SESSION_HASH   66자
auth.hyeonworks.com          KEYCLOAK_SESSION       64자
