fix: dpad number input

close #196

lib/screens/settings/settings_screen.dart

@@ -970,6 +970,7 @@ class _SettingsScreenState extends State<SettingsScreen> with FocusableTab {
     required Future<void> Function(int value) onSave,
   }) {
     int spinnerValue = currentValue;
+    final saveFocusNode = FocusNode();
 
     showDialog(
       context: context,
@@ -992,6 +993,8 @@ class _SettingsScreenState extends State<SettingsScreen> with FocusableTab {
                         spinnerValue = value;
                       });
                     },
+                    onConfirm: () => saveFocusNode.requestFocus(),
+                    onCancel: () => Navigator.pop(dialogContext),
                   ),
                   const SizedBox(height: 8),
                   Text(
@@ -1005,6 +1008,7 @@ class _SettingsScreenState extends State<SettingsScreen> with FocusableTab {
               actions: [
                 TextButton(onPressed: () => Navigator.pop(dialogContext), child: Text(t.common.cancel)),
                 TextButton(
+                  focusNode: saveFocusNode,
                   onPressed: () async {
                     await onSave(spinnerValue);
                     if (dialogContext.mounted) {
@@ -1018,7 +1022,7 @@ class _SettingsScreenState extends State<SettingsScreen> with FocusableTab {
           },
         );
       },
-    );
+    ).then((_) => saveFocusNode.dispose());
   }
 
   /// Standard numeric input dialog with TextField for non-TV platforms.

lib/widgets/tv_number_spinner.dart

@@ -33,6 +33,14 @@ class TvNumberSpinner extends StatefulWidget {
   /// Called when the value changes.
   final ValueChanged<int> onChanged;
 
+  /// Called when the user presses SELECT to confirm.
+  /// Use this to move focus to a confirm/save button.
+  final VoidCallback? onConfirm;
+
+  /// Called when the user presses BACK to cancel.
+  /// Use this to close the dialog or cancel the operation.
+  final VoidCallback? onCancel;
+
   /// Whether the spinner should request focus when built.
   final bool autofocus;
 
@@ -45,6 +53,8 @@ class TvNumberSpinner extends StatefulWidget {
     this.step = 1,
     this.suffix,
     this.autofocus = false,
+    this.onConfirm,
+    this.onCancel,
   });
 
   @override
@@ -105,6 +115,16 @@ class _TvNumberSpinnerState extends State<TvNumberSpinner> {
     final key = event.logicalKey;
 
     if (event is KeyDownEvent) {
+      // Handle SELECT key to confirm/move to save button
+      if (key.isSelectKey && widget.onConfirm != null) {
+        widget.onConfirm!();
+        return KeyEventResult.handled;
+      }
+      // Handle BACK key to cancel
+      if (key.isBackKey && widget.onCancel != null) {
+        widget.onCancel!();
+        return KeyEventResult.handled;
+      }
       if (key.isUpKey || key.isRightKey) {
         _startRepeat(_increment);
         return KeyEventResult.handled;