* fix: idle timeout not respected on Unix/macOS (#1101)
The idle sleep future was recreated inside the select loop on every
iteration. Because the drain interval ticks every 500 ms the future
was dropped and replaced before it could reach its deadline, so the
daemon never shut down.
Move the pinned Sleep future outside the loop so it survives drain
ticks and only resets on actual command receipt (reset_rx). Apply the
same fix to the Windows path where accept events caused an identical
timer reset.
* style: apply cargo fmt
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Co-authored-by: hyunjinee <leehj0110@kakao.com>
