Refactor code structure for improved readability and maintainability

Co-authored-by: Copilot <copilot@github.com>

flutter/lib/features/profile/data/profile_repository.dart

@@ -1,12 +1,12 @@
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import '../../../core/api/api_client.dart';
+import '../../../core/api/api_paths.dart';
 import '../../../core/api/guarded_api_call.dart';
-import '../../../core/api/api_exception.dart';
 import '../../auth/data/auth_providers.dart';
+import '../domain/user_profile.dart';
 
 final profileRepositoryProvider = Provider<ProfileRepository>((ref) {
-  final apiClient = ref.read(apiClientProvider);
-  return ProfileRepository(apiClient, ref);
+  return ProfileRepository(ref.watch(apiClientProvider), ref);
 });
 
 class ProfileRepository {
@@ -15,17 +15,28 @@ class ProfileRepository {
 
   ProfileRepository(this._apiClient, this._ref);
 
-  Future<Map<String, dynamic>> getProfile() async {
-    return guardedApiCall(
+  Future<UserProfile> getMe() async {
+    final data = await guardedApiCall(
       _ref,
-      () => _apiClient.getJson('/api/profile'),
+      () => _apiClient.getJson(UserApiPaths.me),
     );
+    return UserProfile.fromJson(data);
   }
 
-  Future<Map<String, dynamic>> updateProfile(Map<String, dynamic> profileData) async {
-    return guardedApiCall(
+  Future<UserProfile> updateMe({
+    String? email,
+    String? firstName,
+    String? lastName,
+  }) async {
+    final body = <String, dynamic>{
+      if (email != null) 'email': email,
+      if (firstName != null) 'firstName': firstName,
+      if (lastName != null) 'lastName': lastName,
+    };
+    final data = await guardedApiCall(
       _ref,
-      () => _apiClient.patchJson('/api/profile', profileData),
+      () => _apiClient.patchJson(UserApiPaths.me, body: body),
     );
+    return UserProfile.fromJson(data);
   }
 }