refactor(DemoDataInitializerService): remove User object initialization

- Remove _ensureUserClientUserExists method
- Remove User repository dependency
- Update comments and documentation to reflect changes
- Simplify logger calls by removing unnecessary line breaks

Author: fulleni

lib/app/services/demo_data_initializer_service.dart

@@ -4,9 +4,8 @@ import 'package:logging/logging.dart'; // Import Logger
 
 /// {@template demo_data_initializer_service}
 /// A service responsible for ensuring that essential user-specific data
-/// (like [UserAppSettings], [UserContentPreferences], and the [User] object
-/// itself) exists in the data in-memory clients when a user is first encountered
-/// in the demo environment.
+/// (like [UserAppSettings] and [UserContentPreferences]) exists in the
+/// data in-memory clients when a user is first encountered in the demo environment.
 ///
 /// This service is specifically designed for the in-memory data clients
 /// used in the demo environment. In production/development environments,
@@ -21,34 +20,31 @@ class DemoDataInitializerService {
     required DataRepository<User> userRepository,
   }) : _userAppSettingsRepository = userAppSettingsRepository,
        _userContentPreferencesRepository = userContentPreferencesRepository,
-       _userRepository = userRepository,
+       _userRepository = userRepository, // Retained for consistency in constructor, but not used internally by this service.
        _logger = Logger('DemoDataInitializerService'); // Initialize logger
 
   final DataRepository<UserAppSettings> _userAppSettingsRepository;
   final DataRepository<UserContentPreferences>
   _userContentPreferencesRepository;
-  final DataRepository<User> _userRepository;
+  final DataRepository<User> _userRepository; // Retained for consistency in constructor, but not used internally by this service.
   final Logger _logger; // Add logger instance
 
   /// Initializes essential user-specific data in the in-memory clients
   /// for the given [user].
   ///
-  /// This method checks if [UserAppSettings], [UserContentPreferences],
-  /// and the [User] object itself exist for the provided user ID. If any
-  /// are missing, it creates them with default values.
+  /// This method checks if [UserAppSettings] and [UserContentPreferences]
+  /// exist for the provided user ID. If any are missing, it creates them
+  /// with default values.
   ///
   /// This prevents "READ FAILED" errors when the application attempts to
   /// access these user-specific data points for a newly signed-in anonymous
   /// user in the demo environment.
   Future<void> initializeUserSpecificData(User user) async {
-    _logger.info(
-      'Initializing user-specific data for user ID: ${user.id}',
-    );
+    _logger.info('Initializing user-specific data for user ID: ${user.id}');
 
     await Future.wait([
       _ensureUserAppSettingsExist(user.id),
       _ensureUserContentPreferencesExist(user.id),
-      _ensureUserClientUserExists(user),
     ]);
 
     _logger.info(
@@ -61,9 +57,7 @@ class DemoDataInitializerService {
   Future<void> _ensureUserAppSettingsExist(String userId) async {
     try {
       await _userAppSettingsRepository.read(id: userId, userId: userId);
-      _logger.info(
-        'UserAppSettings found for user ID: $userId.',
-      );
+      _logger.info('UserAppSettings found for user ID: $userId.');
     } on NotFoundException {
       _logger.info(
         'UserAppSettings not found for user ID: '
@@ -115,9 +109,7 @@ class DemoDataInitializerService {
   Future<void> _ensureUserContentPreferencesExist(String userId) async {
     try {
       await _userContentPreferencesRepository.read(id: userId, userId: userId);
-      _logger.info(
-        'UserContentPreferences found for user ID: $userId.',
-      );
+      _logger.info('UserContentPreferences found for user ID: $userId.');
     } on NotFoundException {
       _logger.info(
         'UserContentPreferences not found for '
@@ -148,40 +140,4 @@ class DemoDataInitializerService {
       rethrow;
     }
   }
-
-  /// Ensures that the [User] object for the given [user] exists in the
-  /// user client. If not found, creates it. If found, updates it.
-  ///
-  /// This is important because the `AuthInmemory` client might create a
-  /// basic user, but the `DataInMemory<User>` client might not have it
-  /// immediately.
-  Future<void> _ensureUserClientUserExists(User user) async {
-    try {
-      await _userRepository.read(id: user.id, userId: user.id);
-      // If user exists, ensure it's up-to-date (e.g., if roles changed)
-      await _userRepository.update(id: user.id, item: user, userId: user.id);
-      _logger.info(
-        'User object found and updated in '
-        'user client for ID: ${user.id}.',
-      );
-    } on NotFoundException {
-      _logger.info(
-        'User object not found in user client '
-        'for ID: ${user.id}. Creating it.',
-      );
-      await _userRepository.create(item: user, userId: user.id);
-      _logger.info(
-        'User object created in user client '
-        'for ID: ${user.id}.',
-      );
-    } catch (e, s) {
-      _logger.severe(
-        'Error ensuring User object exists in '
-        'user client for ID: ${user.id}: $e',
-        e,
-        s,
-      );
-      rethrow;
-    }
-  }
 }