Added
- Calendar: an opt-in
ICS_SUBSCRIPTION_ALLOW_PRIVATE_NETWORKenvironment flag lets ICS calendar subscriptions usehttp://URLs and local/private-network feeds (e.g. a Sonarr, Radarr, or Home Assistant calendar in the same LAN). It lifts the built-in SSRF protection for ICS subscriptions only, and defaults to off — enable it only in controlled environments.