update

lib/features/settings/provider.dart

@@ -32,7 +32,6 @@ class BudgetNotifier extends StateNotifier<double?> {
   }
 }
 
-// Currency info: symbol and code
 class CurrencyInfo {
   final String symbol;
   final String code;
@@ -95,7 +94,6 @@ final themeProvider = StateNotifierProvider<ThemeModeNotifier, ThemeMode>(
   (ref) => ThemeModeNotifier(),
 );
 
-// Exchange rate service
 final exchangeRateServiceProvider = Provider<ExchangeRateService>((ref) {
   final prefs = ref.watch(sharedPreferencesProvider);
   return ExchangeRateService(prefs);
@@ -119,11 +117,9 @@ class ExportService {
     final currency = _ref.read(currencyProvider);
     final fmt = _ref.read(amountFormatProvider);
 
-    // CSV header
     final buffer = StringBuffer();
     buffer.writeln('Date,Type,Category,Amount,Currency,Note');
 
-    // CSV rows
     for (final tx in transactions) {
       final date = DateFormat('yyyy-MM-dd').format(tx.date);
       final type = tx.type.name;
@@ -133,7 +129,6 @@ class ExportService {
       buffer.writeln('$date,$type,$category,$amount,${tx.currencyCode},$note');
     }
 
-    // Save to Downloads
     final directory = await getApplicationDocumentsDirectory();
     final timestamp = DateFormat('yyyyMMdd_HHmmss').format(DateTime.now());
     final file = File('${directory.path}/transactions_$timestamp.csv');

lib/features/settings/screen.dart

@@ -52,7 +52,6 @@ class _SettingsScreenState extends ConsumerState<SettingsScreen> {
   }
 
   void _confirmClearData(BuildContext context, WidgetRef ref) {
-    // First confirmation
     showDialog(
       context: context,
       builder: (ctx) => AlertDialog(
@@ -66,7 +65,6 @@ class _SettingsScreenState extends ConsumerState<SettingsScreen> {
           TextButton(
             onPressed: () {
               Navigator.pop(ctx);
-              // Second confirmation
               showDialog(
                 context: context,
                 builder: (ctx2) => AlertDialog(
@@ -109,7 +107,6 @@ class _SettingsScreenState extends ConsumerState<SettingsScreen> {
     final fmt = ref.watch(amountFormatProvider);
     final isDark = Theme.of(context).brightness == Brightness.dark;
 
-    // Update currency format when it changes
     _currencyFmt = NumberFormat.currency(symbol: currencyInfo.symbol, decimalDigits: 2);
 
     return Scaffold(
@@ -139,7 +136,6 @@ class _SettingsScreenState extends ConsumerState<SettingsScreen> {
           padding: const EdgeInsets.fromLTRB(20, 16, 20, 20),
           children: [
 
-            // Theme Toggle
             Container(
               padding: const EdgeInsets.all(20),
               decoration: BoxDecoration(
@@ -194,7 +190,6 @@ class _SettingsScreenState extends ConsumerState<SettingsScreen> {
             ),
             const SizedBox(height: 16),
 
-            // Budget Setting
             Container(
               padding: const EdgeInsets.all(20),
               decoration: BoxDecoration(
@@ -310,7 +305,6 @@ class _SettingsScreenState extends ConsumerState<SettingsScreen> {
             ),
             const SizedBox(height: 16),
 
-            // Amount Format Selector
             Container(
               padding: const EdgeInsets.all(20),
               decoration: BoxDecoration(
@@ -393,7 +387,6 @@ class _SettingsScreenState extends ConsumerState<SettingsScreen> {
             ),
             const SizedBox(height: 16),
 
-            // Currency Selector
             Container(
               padding: const EdgeInsets.all(20),
               decoration: BoxDecoration(
@@ -486,7 +479,6 @@ class _SettingsScreenState extends ConsumerState<SettingsScreen> {
             ),
             const SizedBox(height: 24),
 
-            // Danger Zone
             Text(
               'Danger Zone',
               style: TextStyle(