Function handle_without_session 

pub fn handle_without_session(
    action: &str,
    value: Option<&str>,
    _session_id: Option<&str>,
) -> Option<String>

Handle actions that do not access live-session state. Keeping them outside the live session lock prevents an explicit list/cleanup request from stalling unrelated reads and shells behind an O(session-store) operation. Some actions intentionally update independent process-global configuration.