Authentik's default-authentication-login stage ships with
session_duration: seconds=0, so the SSO session died with the browser.
New blueprint raises it to 30 days for every app on that flow.
FreshRSS runs OIDC through Apache mod_auth_openidc, whose defaults are a
5 minute inactivity timeout and a ~7.5 hour max duration in a non-persistent
cookie. Bumped to a 30 day sliding inactivity window (refreshed on every
request) with a 90 day hard cap, and made the cookie persistent so it
survives a browser restart.