6564d37a2a
Shared AppBar actions for top-level screens — three primary icons (Home/Library/Search, current screen suppressed) plus a kebab containing Playlists/Discover/Settings and (only when isAdmin) Admin. Replaces the ad-hoc per-screen IconButton lists; centralises admin-gating logic in one place so /admin entry can't accidentally leak to non-admins. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>