claude refactorings, flutter best practices, platform dependent changes, general cleanup

lib/state/app/modules/timetable/repository/timetable_repository.dart

@@ -1,6 +1,6 @@
 import '../../../infrastructure/repository/repository.dart';
 import '../bloc/timetable_state.dart';
-import '../dataProvider/timetable_data_provider.dart';
+import '../data_provider/timetable_data_provider.dart';
 
 class TimetableRepository extends Repository<TimetableState> {
   final TimetableDataProvider _provider;