feat: Add logger service and improve expense dialog with enhanced receipt management and calculation logic.

lib/services/error_service.dart

@@ -1,32 +1,33 @@
 import 'package:flutter/material.dart';
 import '../components/error/error_content.dart';
+import 'logger_service.dart';
 
 /// Service for handling application errors and user notifications.
-/// 
+///
 /// This singleton service provides centralized error handling capabilities
 /// including displaying error dialogs, snackbars, and logging errors for
 /// debugging purposes. It uses a global navigator key to show notifications
 /// from anywhere in the application.
 class ErrorService {
   static final ErrorService _instance = ErrorService._internal();
-  
+
   /// Factory constructor that returns the singleton instance.
   factory ErrorService() => _instance;
-  
+
   /// Private constructor for singleton pattern.
   ErrorService._internal();
 
   /// Global navigator key for accessing context from anywhere in the app.
-  /// 
+  ///
   /// This key should be assigned to the MaterialApp's navigatorKey property
   /// to enable error notifications from any part of the application.
   static GlobalKey<NavigatorState> navigatorKey = GlobalKey<NavigatorState>();
 
   /// Displays an error message in a dialog.
-  /// 
+  ///
   /// Shows a modal dialog with the error message and optional retry functionality.
   /// The dialog appearance can be customized with different icons and colors.
-  /// 
+  ///
   /// [message] - The error message to display
   /// [title] - The dialog title (defaults to 'Error')
   /// [onRetry] - Optional callback for retry functionality
@@ -53,10 +54,10 @@ class ErrorService {
   }
 
   /// Displays an error or success message in a snackbar.
-  /// 
+  ///
   /// Shows a floating snackbar at the bottom of the screen with the message.
   /// The appearance changes based on whether it's an error or success message.
-  /// 
+  ///
   /// [message] - The message to display
   /// [onRetry] - Optional callback for retry functionality
   /// [isError] - Whether this is an error (true) or success (false) message
@@ -89,36 +90,35 @@ class ErrorService {
   }
 
   /// Logs error messages to the console during development.
-  /// 
+  ///
   /// Formats and displays error information including source, error message,
   /// and optional stack trace in a visually distinct format.
-  /// 
+  ///
   /// [source] - The source or location where the error occurred
   /// [error] - The error object or message
   /// [stackTrace] - Optional stack trace for debugging
   void logError(String source, dynamic error, [StackTrace? stackTrace]) {
-    print('═══════════════════════════════════');
-    print('❌ ERROR in $source');
-    print('Message: $error');
-    if (stackTrace != null) {
-      print('StackTrace: $stackTrace');
-    }
-    print('═══════════════════════════════════');
+    LoggerService.error(
+      '❌ ERROR in $source\nMessage: $error',
+      name: source,
+      error: error,
+      stackTrace: stackTrace,
+    );
   }
 
   /// Logs informational messages to the console during development.
-  /// 
+  ///
   /// [source] - The source or location of the information
   /// [message] - The informational message
   void logInfo(String source, String message) {
-    print('ℹ️ [$source] $message');
+    LoggerService.info('ℹ️ $message', name: source);
   }
 
   /// Logs success messages to the console during development.
-  /// 
+  ///
   /// [source] - The source or location of the success
   /// [message] - The success message
   void logSuccess(String source, String message) {
-    print('✅ [$source] $message');
+    LoggerService.info('✅ $message', name: source);
   }
-}
+}