feat: add course bar length setting and clear blue glass Dock

mobile/lib/app/app_controller.dart

@@ -88,18 +88,31 @@ class AppController extends ChangeNotifier {
   Future<void> updateSettings(
     AppSettings Function(AppSettings current) change,
   ) => _run(() async {
-    final value = change(snapshot.settings);
+    final previous = snapshot.settings;
+    final value = change(previous);
     if (![5, 10, 15, 30, 60].contains(value.reminderMinutes)) {
       throw ArgumentError('提醒时间无效');
     }
+    if (!value.courseHeightScale.isFinite ||
+        value.courseHeightScale < AppSettings.minCourseHeightScale ||
+        value.courseHeightScale > AppSettings.maxCourseHeightScale) {
+      throw ArgumentError('课程条长度无效');
+    }
     await _save(snapshot.copyWith(settings: value));
     if (isDemo) {
       _demoSettings = _demoSettings!.copyWith(
         colorMode: value.colorMode,
         singleColorArgb: value.singleColorArgb,
+        courseHeightScale: value.courseHeightScale,
       );
     }
-    await _reconcile();
+    final scheduleChanged =
+        previous.semester != value.semester ||
+        previous.remindersEnabled != value.remindersEnabled ||
+        previous.reminderMinutes != value.reminderMinutes ||
+        previous.calendarEnabled != value.calendarEnabled ||
+        previous.calendarId != value.calendarId;
+    if (scheduleChanged) await _reconcile();
   });
   Future<void> applyImport(
     ImportDraft draft, {