사용하지 않는 파일 정리 전 백업 (Phase 10 완료 후 상태)

lib/core/services/lookups_service.dart

@@ -1,13 +1,11 @@
-import 'dart:async';
+import 'dart:async' show unawaited, StreamController;
 
 import 'package:dartz/dartz.dart';
-import 'package:get_it/get_it.dart';
 import 'package:injectable/injectable.dart';
 import 'package:superport/core/errors/failures.dart';
 import 'package:superport/core/utils/debug_logger.dart';
 import 'package:superport/data/datasources/remote/lookup_remote_datasource.dart';
 import 'package:superport/data/models/lookups/lookup_data.dart';
-import 'dart:async' show unawaited;
 
 /// 전역 Lookups 캐싱 서비스 (Singleton 패턴)
 @LazySingleton()