결재 및 마스터 모듈을 v4 API 계약에 맞게 조정

lib/features/masters/group/data/repositories/group_repository_remote.dart

@@ -40,7 +40,7 @@ class GroupRepositoryRemote implements GroupRepository {
         'page_size': pageSize,
         if (query != null && query.isNotEmpty) 'q': query,
         if (isDefault != null) 'is_default': isDefault,
-        if (isActive != null) 'is_active': isActive,
+        if (isActive != null) 'active': isActive,
         if (includeParts.isNotEmpty) 'include': includeParts.join(','),
       },
       options: Options(responseType: ResponseType.json),