minor bug fixes

lib/screens/home/home_screen.dart

@@ -31,6 +31,10 @@ class _HomeScreenState extends State<HomeScreen> with TickerProviderStateMixin {
   String initials = '';
   String _selectedCurrency = 'USD';
 
+  /// Incremented to force [AccountBalanceWidget] to recreate and re-read
+  /// auth state from disk (e.g. after logout or manual refresh).
+  int _balanceWidgetRefreshKey = 0;
+
   late AnimationController _providersAnimController;
   late Animation<Offset> _providersSlideAnimation;
   late Animation<double> _providersFadeAnimation;
@@ -143,6 +147,9 @@ class _HomeScreenState extends State<HomeScreen> with TickerProviderStateMixin {
   }
 
   Future<void> _onRefresh() async {
+    setState(() {
+      _balanceWidgetRefreshKey++;
+    });
     await homeController.getAccounts();
     await homeController.getCategories();
     await homeController.getProviders(_selectedCurrency);
@@ -394,6 +401,7 @@ class _HomeScreenState extends State<HomeScreen> with TickerProviderStateMixin {
       crossAxisAlignment: CrossAxisAlignment.start,
       children: [
         AccountBalanceWidget(
+          key: ValueKey(_balanceWidgetRefreshKey),
           selectedCurrency: _selectedCurrency,
           onCurrencySelected: _onCurrencySelected,
         ),
@@ -691,6 +699,7 @@ class _HomeScreenState extends State<HomeScreen> with TickerProviderStateMixin {
                 prefs.clear();
                 setState(() {
                   _isLoggedIn = false;
+                  _balanceWidgetRefreshKey++;
                 });
                 authState.refresh();
                 setupDataAndTransitions();