migrated timetable integration from WebUntis to the MarianumConnect API, implementing a Dio-based client with bearer token authentication, background session validation, and auto-refresh logic.

lib/view/pages/timetable/details/appointment_details_dispatcher.dart

@@ -4,7 +4,7 @@ import 'package:syncfusion_flutter_calendar/calendar.dart';
 import '../../../../state/app/modules/timetable/bloc/timetable_bloc.dart';
 import '../data/arbitrary_appointment.dart';
 import 'custom_event_sheet.dart';
-import 'webuntis_lesson_sheet.dart';
+import 'lesson_sheet.dart';
 
 class AppointmentDetailsDispatcher {
   static void show(
@@ -16,8 +16,8 @@ class AppointmentDetailsDispatcher {
     if (id is! ArbitraryAppointment) return;
 
     id.when(
-      webuntis: (lesson) =>
-          WebuntisLessonSheet.show(context, bloc, appointment, lesson),
+      lesson: (entry) =>
+          LessonSheet.show(context, bloc, appointment, entry),
       custom: (event) => CustomEventSheet.show(context, event),
     );
   }