[#42] Implement the ProfileUseCase

lib/usecases/user/get_profile_use_case.dart

@@ -0,0 +1,28 @@
+import 'dart:async';
+import 'package:injectable/injectable.dart';
+import 'package:kayla_flutter_ic/api/repository/user_repository.dart';
+import 'package:kayla_flutter_ic/model/profile.dart';
+import 'package:kayla_flutter_ic/usecases/base/base_use_case.dart';
+
+@Injectable()
+class ProfileUseCase extends NoParamsUseCase<Profile> {
+  final UserRepository _repository;
+
+  const ProfileUseCase(
+    this._repository,
+  );
+
+  @override
+  Future<Result<Profile>> call() async {
+    try {
+      final result = await _repository.me();
+      return Success(Profile(
+        id: result.id,
+        email: result.email,
+        avatarUrl: result.avatarUrl,
+      ));
+    } catch (exception) {
+      return Failed(UseCaseException(exception));
+    }
+  }
+}