Treat the appearance setting as the rendered base size so the type ramp scales predictably. Native starts one pixel larger while web and desktop preserve the authored 14px base, with legacy values migrated on load.
Restore desktop notification sounds by default, add a persisted Play sound setting, and group notification permission and testing in a dedicated Notifications section.
Rename CalloutCard to SidebarCallout (it was always sidebar-specific) and
add a shadcn-style Alert primitive with info/success/warning/error variants
for inline use in screens. Replace the misused SidebarCallout in project
settings with Alert and surface the underlying RPC error message instead
of generic copy. Tune destructive color per theme to a calm tinted red.
Mohamed Boudra