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

lib/state/app/modules/holidays/data_provider/holidays_get_holidays.dart

@@ -0,0 +1,13 @@
+import 'package:dio/dio.dart';
+
+import '../../../basis/dataloader/holiday_data_loader.dart';
+import '../../../infrastructure/data_loader/data_loader.dart';
+import '../bloc/holidays_state.dart';
+
+class HolidaysGetHolidays extends HolidayDataLoader<List<Holiday>> {
+  @override
+  List<Holiday> assemble(DataLoaderResult data) => data.asListOfMaps().map(Holiday.fromJson).toList();
+
+  @override
+  Future<Response<String>> fetch() => dio.get('/holidays/HE');
+}