Polish PlaylistsListView for tvOS

Hide navigation title on tvOS, move the new-playlist action into an
inline focus section above the list, and make rows focusable via
NavigationLink so focus can move down from the button and default
focus lands on the first playlist.

Yattee/Views/Home/PlaylistsListView.swift

@@ -12,6 +12,9 @@ struct PlaylistsListView: View {
     @State private var playlists: [LocalPlaylist] = []
     @State private var showingNewPlaylist = false
     @State private var playlistToEdit: LocalPlaylist?
+    #if os(tvOS)
+    @FocusState private var focusedPlaylistID: UUID?
+    #endif
 
     private var dataManager: DataManager? { appEnvironment?.dataManager }
 
@@ -22,16 +25,19 @@ struct PlaylistsListView: View {
 
     var body: some View {
         Group {
+            #if os(tvOS)
+            tvOSContent
+            #else
             if playlists.isEmpty {
                 emptyView
             } else {
                 listContent
             }
+            #endif
         }
-        .navigationTitle(String(localized: "home.playlists.title"))
         #if !os(tvOS)
+        .navigationTitle(String(localized: "home.playlists.title"))
         .toolbarTitleDisplayMode(.inlineLarge)
-        #endif
         .toolbar {
             ToolbarItem(placement: .primaryAction) {
                 Button {
@@ -41,6 +47,7 @@ struct PlaylistsListView: View {
                 }
             }
         }
+        #endif
         .sheet(isPresented: $showingNewPlaylist) {
             PlaylistFormSheet(mode: .create) { title, description in
                 _ = dataManager?.createPlaylist(title: title, description: description)
@@ -61,6 +68,42 @@ struct PlaylistsListView: View {
         }
     }
 
+    #if os(tvOS)
+    // MARK: - tvOS Content
+
+    private var tvOSContent: some View {
+        VStack(spacing: 0) {
+            HStack {
+                Spacer()
+                Button {
+                    showingNewPlaylist = true
+                } label: {
+                    Label(String(localized: "home.playlists.new"), systemImage: "plus")
+                }
+            }
+            .focusSection()
+            .padding(.horizontal, 48)
+            .padding(.top, 20)
+
+            Group {
+                if playlists.isEmpty {
+                    emptyView
+                } else {
+                    listContent
+                }
+            }
+            .focusSection()
+        }
+        .onChange(of: playlists.first?.id, initial: true) { _, newValue in
+            // Work around tvOS focus bug: set initial focus to first playlist once cells materialize.
+            guard let newValue else { return }
+            DispatchQueue.main.asyncAfter(deadline: .now() + 0.15) {
+                focusedPlaylistID = newValue
+            }
+        }
+    }
+    #endif
+
     // MARK: - Empty View
 
     private var emptyView: some View {
@@ -95,6 +138,7 @@ struct PlaylistsListView: View {
                 ) {
                     playlistRow(playlist: playlist)
                 }
+                #if !os(tvOS)
                 .swipeActions {
                     SwipeAction(
                         symbolImage: "pencil",
@@ -114,6 +158,7 @@ struct PlaylistsListView: View {
                         reset()
                     }
                 }
+                #endif
             }
         }
     }
@@ -122,6 +167,16 @@ struct PlaylistsListView: View {
 
     @ViewBuilder
     private func playlistRow(playlist: LocalPlaylist) -> some View {
+        #if os(tvOS)
+        NavigationLink(value: NavigationDestination.playlist(.local(playlist.id, title: playlist.title))) {
+            PlaylistRowView(playlist: playlist)
+                .frame(maxWidth: .infinity, alignment: .leading)
+                .contentShape(Rectangle())
+        }
+        .buttonStyle(.plain)
+        .zoomTransitionSource(id: playlist.id)
+        .focused($focusedPlaylistID, equals: playlist.id)
+        #else
         PlaylistRowView(playlist: playlist)
             .frame(maxWidth: .infinity, alignment: .leading)
             .contentShape(Rectangle())
@@ -129,6 +184,7 @@ struct PlaylistsListView: View {
                 appEnvironment?.navigationCoordinator.navigate(to: .playlist(.local(playlist.id, title: playlist.title)))
             }
             .zoomTransitionSource(id: playlist.id)
+        #endif
     }
 
     private func loadPlaylists() {