1.0 library + player settings: Jellyfin/Link/Files library with details panel, player gear, settings cards, host flag

Library: source switch, selectable cards with a details panel, one merged
Continue row, Latest grouped per series without re-releases, Link page with
previews and recent links, Files embedded. Player: gear popover in both
designs, progress line while controls hide, live hwdec. Settings rebuilt as
cards. State marks the host member (proto stays 9, unreleased); hosting
shows LAN invite addresses; window buttons in fullscreen. fadeThrough keeps
the outgoing view's state.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

apps/desktop/lib/src/shell/app_shell.dart

@@ -609,6 +609,7 @@ class AppShellState extends State<AppShell> with SingleTickerProviderStateMixin
                   onOpenIntegrations: () => _openSettings(SettingsSection.integrations),
                   onLeave: _confirmLeave,
                   videoBuilder: widget.videoBuilder,
+                  windowControls: widget.windowControls,
                 ),
               ),
             ),