feat: Add Idle Shutdown Timer support #464

Job	Run time
bookworm armv7 / build	9m 4s
bullseye armv7 / build	8m 3s
bullseye armv7 / test (run_install_common.sh)	13m 25s
bullseye armv7 / test (run_install_faststartup.sh)	9m 37s
bullseye armv7 / test (run_install_webapp_local.sh)	20m 13s
bullseye armv7 / test (run_install_webapp_download.sh)	14m 3s
bullseye armv7 / test (run_install_libzmq_local.sh)	23m 54s
bookworm armv7 / test (run_install_common.sh)	15m 42s
bookworm armv7 / test (run_install_faststartup.sh)	10m 44s
bookworm armv7 / test (run_install_webapp_local.sh)	22m 18s
bookworm armv7 / test (run_install_webapp_download.sh)	14m 33s
bookworm armv7 / test (run_install_libzmq_local.sh)	26m 16s
bullseye armv7 / cleanup	4s
bookworm armv7 / cleanup	3s
	3h 7m 59s

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