fix: dpad focus and navigation for Live TV guide

lib/screens/livetv/live_tv_screen.dart

@@ -6,6 +6,7 @@ import '../../focus/dpad_navigator.dart';
 import '../../i18n/strings.g.dart';
 import '../../models/livetv_channel.dart';
 import '../../models/livetv_dvr.dart';
+import '../../mixins/refreshable.dart';
 import '../../mixins/tab_navigation_mixin.dart';
 import '../../providers/multi_server_provider.dart';
 import '../../utils/app_logger.dart';
@@ -23,7 +24,9 @@ class LiveTvScreen extends StatefulWidget {
   State<LiveTvScreen> createState() => _LiveTvScreenState();
 }
 
-class _LiveTvScreenState extends State<LiveTvScreen> with SingleTickerProviderStateMixin, TabNavigationMixin {
+class _LiveTvScreenState extends State<LiveTvScreen>
+    with SingleTickerProviderStateMixin, TabNavigationMixin
+    implements FocusableTab {
   final _guideTabFocusNode = FocusNode(debugLabel: 'tab_chip_guide');
   final _whatsOnTabFocusNode = FocusNode(debugLabel: 'tab_chip_whats_on');
   final _guideTabKey = GlobalKey<GuideTabState>();
@@ -216,6 +219,9 @@ class _LiveTvScreenState extends State<LiveTvScreen> with SingleTickerProviderSt
     });
   }
 
+  @override
+  void focusActiveTabIfReady() => _focusCurrentTab();
+
   // ---------------------------------------------------------------------------
   // Action button key handlers
   // ---------------------------------------------------------------------------

lib/screens/livetv/tabs/guide_tab.dart

@@ -375,15 +375,21 @@ class GuideTabState extends State<GuideTab> {
           });
           _scrollToProgramTime(program);
         }
+      } else {
+        // Already in program column — move to next program
+        _navigateToAdjacentProgram(_gridChannelIndex, forward: true);
       }
       return KeyEventResult.handled;
     }
     if (key.isLeftKey) {
       if (_gridColumn == 1) {
-        setState(() {
-          _gridColumn = 0;
-          _focusedProgram = null;
-        });
+        // Try moving to previous program; if at first program, go back to channel column
+        if (!_navigateToAdjacentProgram(_gridChannelIndex, forward: false)) {
+          setState(() {
+            _gridColumn = 0;
+            _focusedProgram = null;
+          });
+        }
       } else {
         widget.onBack?.call();
       }
@@ -424,6 +430,27 @@ class GuideTabState extends State<GuideTab> {
     return programs.firstOrNull;
   }
 
+  /// Navigate to the next or previous program on the same channel.
+  /// Returns true if navigation succeeded, false if at the boundary.
+  bool _navigateToAdjacentProgram(int channelIndex, {required bool forward}) {
+    if (channelIndex < 0 || channelIndex >= widget.channels.length) return false;
+    final channel = widget.channels[channelIndex];
+    final programs = _getProgramsForChannel(channel);
+    if (programs.isEmpty || _focusedProgram == null) return false;
+
+    final currentIndex = programs.indexWhere((p) => identical(p, _focusedProgram));
+    if (currentIndex < 0) return false;
+
+    final nextIndex = forward ? currentIndex + 1 : currentIndex - 1;
+    if (nextIndex < 0 || nextIndex >= programs.length) return false;
+
+    setState(() {
+      _focusedProgram = programs[nextIndex];
+    });
+    _scrollToProgramTime(_focusedProgram);
+    return true;
+  }
+
   void _scrollToChannel(int index) {
     if (!_gridVerticalController.hasClients) return;
     final targetTop = index * _rowHeight;
@@ -440,9 +467,13 @@ class GuideTabState extends State<GuideTab> {
 
     if (newOffset != null) {
       final clamped = newOffset.clamp(0.0, _gridVerticalController.position.maxScrollExtent);
-      _gridVerticalController.jumpTo(clamped);
+      _gridVerticalController.animateTo(clamped, duration: const Duration(milliseconds: 150), curve: Curves.easeOut);
       if (_channelVerticalController.hasClients) {
-        _channelVerticalController.jumpTo(clamped.clamp(0.0, _channelVerticalController.position.maxScrollExtent));
+        _channelVerticalController.animateTo(
+          clamped.clamp(0.0, _channelVerticalController.position.maxScrollExtent),
+          duration: const Duration(milliseconds: 150),
+          curve: Curves.easeOut,
+        );
       }
     }
   }

lib/screens/main_screen.dart

@@ -671,6 +671,15 @@ class _MainScreenState extends State<MainScreen> with RouteAware, WindowListener
         }
       });
     }
+    // When content regains focus while on Live TV, focus the active guide/whats-on tab
+    final liveTvIndex = NavigationTab.indexFor(NavigationTabId.liveTv, isOffline: _isOffline, hasLiveTv: _hasLiveTv);
+    if (_currentIndex == liveTvIndex && liveTvIndex >= 0) {
+      WidgetsBinding.instance.addPostFrameCallback((_) {
+        if (_liveTvKey.currentState case final FocusableTab focusable) {
+          focusable.focusActiveTabIfReady();
+        }
+      });
+    }
     // When content regains focus while on Settings, restore focus to last focused setting
     final settingsIndex = NavigationTab.indexFor(
       NavigationTabId.settings,
@@ -876,6 +885,13 @@ class _MainScreenState extends State<MainScreen> with RouteAware, WindowListener
           focusable.focusActiveTabIfReady();
         }
       }
+      // Ensure the Live TV screen applies focus when brought into view
+      final liveTvIdx = NavigationTab.indexFor(NavigationTabId.liveTv, isOffline: _isOffline, hasLiveTv: _hasLiveTv);
+      if (index == liveTvIdx && liveTvIdx >= 0 && previousIndex != liveTvIdx) {
+        if (_liveTvKey.currentState case final FocusableTab focusable) {
+          focusable.focusActiveTabIfReady();
+        }
+      }
       // Focus search input when selecting Search tab
       if (NavigationTab.isTabAtIndex(NavigationTabId.search, index, isOffline: _isOffline, hasLiveTv: _hasLiveTv)) {
         if (_searchKey.currentState case final SearchInputFocusable searchable) {