Move app-controlled options (bell, sound, move-to-top, dock bounce) into the Notifications section and system-dependent ones (system banners, dock badge) into a new System section. The Dock badge is rendered by macOS only when notifications are allowed and 'Badge app icon' is on (it does not depend on Prowl's banner toggle). Query that via SystemNotificationClient.dockBadgeAuthorization, refresh it when the pane appears, and disable + gray the badge toggle with an explanatory caption when unavailable.