Constant IDLE_RECHECK_SECS 

const IDLE_RECHECK_SECS: u64 = _; // 300u64

How often an idle publisher looks again. A sign-in in another channel (the MuxBus login is shared) changes the directory this one should publish to, but only nudges its own process (Codex P2 on #3994), so an idle publisher can’t wait on nudges alone.