One-click restart for the DSH desktop client, from five entries you can toggle individually: a sidebar panel, the sidebar footer, the conversation header, a Settings → General row, or the /restart slash command. The app is closed gracefully (only the main process is signalled, so the host can flush session logs) and relaunched by a detached helper that survives the shutdown; optional guards wait for running tasks or an in-progress plugin install, results land in a receipt, requests are fenced to loopback same-origin, and every switch is persisted in the profile config file. Only the four UI entries can be switched off; the slash command is always available.