adopt MarianumConnectQuery base in remaining queries

lib/api/marianumconnect/queries/timetable_get_week/timetable_get_week.dart

@@ -1,32 +1,19 @@
-import 'package:dio/dio.dart';
-
-import '../../errors/marianumconnect_error.dart';
-import '../../marianumconnect_api.dart';
-import '../../marianumconnect_endpoint.dart';
+import '../../marianumconnect_query.dart';
 import 'timetable_get_week_response.dart';
 
-class TimetableGetWeek {
-  final Dio _dio;
-
-  TimetableGetWeek({Dio? dio}) : _dio = dio ?? MarianumConnectApi.dio();
+class TimetableGetWeek extends MarianumConnectQuery {
+  TimetableGetWeek({super.dio});
 
   Future<TimetableGetWeekResponse> run({
     required DateTime from,
     required DateTime until,
-  }) async {
-    try {
-      final response = await _dio.get<Map<String, dynamic>>(
-        MarianumConnectEndpoint.resolve('timetable/me'),
-        queryParameters: {
-          'from': _format(from),
-          'until': _format(until),
-        },
-      );
-      return TimetableGetWeekResponse.fromJson(response.data!);
-    } on DioException catch (e) {
-      throw mapMarianumConnectError(e);
-    }
-  }
+  }) => guard(() async {
+    final response = await dio.get<Map<String, dynamic>>(
+      endpoint('timetable/me'),
+      queryParameters: {'from': _format(from), 'until': _format(until)},
+    );
+    return TimetableGetWeekResponse.fromJson(response.data!);
+  });
 
   String _format(DateTime d) =>
       '${d.year.toString().padLeft(4, '0')}-${d.month.toString().padLeft(2, '0')}-${d.day.toString().padLeft(2, '0')}';