Second wave of audit #8. PlaylistsListScreen, PlaylistDetailScreen,
DiscoverScreen, RequestsScreen all wrap their body in
PullToRefreshScaffold. VM refresh methods updated to return Job for
the wrapper's await.
PlaylistsListViewModel gains a public refresh() (was init-only
fire-and-forget). DiscoverScreen's swipe re-fetches suggestions
(the most-useful refresh target on that screen — Lidarr search
results refresh on next query).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
bvandeusen
4ca10e2afa