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Rounds out the native app on Linux (Windows features kept; macOS stays no-op): - power.rs: no-sleep during calls on Linux via a zbus org.freedesktop.ScreenSaver Inhibit/UnInhibit (cookie held in ScreenSaverInhibit managed state). - set_badge_count: Linux launcher badge via the Unity com.canonical.Unity.LauncherEntry.Update D-Bus signal (best-effort; app_uri = cinny.desktop per Tauri's mainBinaryName naming). - tauri-plugin-autostart registered (+ autostart:allow-enable/disable/is-enabled capabilities); web toggles it from Settings. - Tray "Do Not Disturb" CheckMenuItem → emits lotus-dnd-changed to the web, which ORs it into the notification quiet-gate. zbus 5 (Linux target dep; blocking-api default). CI-compile-verified (windows+linux); reviewer confirmed no build-breakers. Runtime to check on Linux: DND toggle polarity, badge .desktop id. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>