update

lib/shared/services/exchange_rate_service.dart

@@ -40,7 +40,6 @@ class ExchangeRateService {
 
   Future<void> fetchRates() async {
     try {
-      // Try primary URL
       final response = await http
           .get(Uri.parse(_primaryUrl))
           .timeout(const Duration(seconds: 10));
@@ -60,11 +59,9 @@ class ExchangeRateService {
         }
       }
     } catch (e) {
-      // Primary failed, try fallback
     }
 
     try {
-      // Try fallback URL
       final response = await http
           .get(Uri.parse(_fallbackUrl))
           .timeout(const Duration(seconds: 10));
@@ -84,10 +81,8 @@ class ExchangeRateService {
         }
       }
     } catch (e) {
-      // Both failed, use cached or fallback
     }
 
-    // If both failed and no cache, use fallback
     if (_rates.isEmpty) {
       _rates = Map.from(_fallbackRates);
     }
@@ -104,7 +99,6 @@ class ExchangeRateService {
     final fromRate = currentRates[from] ?? 1.0;
     final toRate = currentRates[to] ?? 1.0;
 
-    // Convert to USD first, then to target currency
     final amountInUsd = amount / fromRate;
     return amountInUsd * toRate;
   }

lib/shared/services/storage_service.dart

@@ -70,14 +70,13 @@ class StorageService {
   }
 
   bool loadThemeMode() {
-    return _prefs.getBool(_themeKey) ?? true; // default dark
+    return _prefs.getBool(_themeKey) ?? true;
   }
 
   Future<void> saveThemeMode(bool isDark) async {
     await _prefs.setBool(_themeKey, isDark);
   }
 
-  // Process recurring transactions
   Future<void> processRecurringTransactions() async {
     final transactions = loadTransactions();
     final now = DateTime.now();
@@ -115,7 +114,6 @@ class StorageService {
       }
 
       if (shouldCreate) {
-        // Create new occurrence
         final newTx = Transaction(
           id: _uuid.v4(),
           amount: tx.amount,
@@ -128,7 +126,6 @@ class StorageService {
         );
         transactions.add(newTx);
 
-        // Update original transaction's lastOccurrence
         final index = transactions.indexWhere((t) => t.id == tx.id);
         if (index != -1) {
           transactions[index] = tx.copyWith(lastOccurrence: today);

lib/shared/utils/currency_utils.dart

@@ -1,7 +1,6 @@
 import '../../core/constants.dart';
 
 String formatAmount(String symbol, double amount, AmountFormat fmt) {
-  // Symbols that need a space after them (prefix symbols like Br, ₽ etc.)
   const spaceAfter = {'Br'};
   final formatted = fmt.format(amount);
   final sep = spaceAfter.contains(symbol) ? ' ' : '';