Lucas Berger
010a69c047
- Create PermissionDeniedBanner.tsx: role=alert banner shown only when permission=denied AND notificationsEnabled=1 (OS-revoked case, D-10) with AlertCircle icon, 'Notifications blocked' heading, inline 'How to enable' button that opens OS-specific instruction sheet (iOS 4-step / Android 4-step) - Mount PermissionDeniedBanner and SettingsSheet in App.tsx; wire onOpenSettings state from avatar tap through CalendarShell → AppNav → PhoneNav/DesktopNav - CalendarShell accepts optional onOpenSettings prop, threads to both AppNav usages - playwright-cli verified: banner renders with exact UI-SPEC copy when permission=denied+was-enabled; banner absent when permission=granted; 'How to enable' opens instruction sheet with correct Android steps; SettingsSheet opens from avatar click with toggle + permission-denied hint
The file is empty.