network addition

lib/state/providers.dart

@@ -14,6 +14,7 @@ import '../subsonic/subsonic_client.dart';
 import '../theme/accent.dart';
 import '../theme/accent_extract.dart';
 import 'favorites.dart';
+import 'remote_providers.dart';
 
 // `BrowseMode`/`SearchMode` are defined in the settings store (so they can be
 // persisted) but historically lived here — re-export so existing importers of
@@ -582,3 +583,26 @@ final playbackProvider =
   controller.restoreForServer();
   return controller;
 });
+
+/// The playback state the UI should render: the mirrored state of the device
+/// we're controlling as a remote when attached (updates-features.md #3), else
+/// the local engine's state. Widgets watch this (with `.select`) instead of
+/// [playbackProvider] so the local/remote source is a single swappable seam.
+final activePlaybackProvider = Provider<PlaybackState>((ref) {
+  final remote = ref.watch(
+    remoteControlProvider.select((s) => s.isAttached ? s.remoteState : null),
+  );
+  return remote ?? ref.watch(playbackProvider);
+});
+
+/// The command sink the UI should drive — a proxy that serializes commands over
+/// the LAN to the attached device when acting as a remote, else the local
+/// [PlaybackController]. Widgets read this instead of `playbackProvider.notifier`.
+final playbackCommandsProvider = Provider<PlaybackCommands>((ref) {
+  final attached = ref.watch(remoteControlProvider.select((s) => s.isAttached));
+  if (attached) {
+    final remote = ref.read(remoteControlProvider.notifier).remoteCommands;
+    if (remote != null) return remote;
+  }
+  return ref.watch(playbackProvider.notifier);
+});