feat: add two-tab timetable UI and glass dock

mobile/test/widgets/navigation_test.dart

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+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:timezone/data/latest.dart' as tzdata;
+import 'package:hepan_everyday/app/hepan_app.dart';
+import 'package:hepan_everyday/app/app_controller.dart';
+
+import '../support/fakes.dart';
+
+AppController uiController() => AppController(
+  MemoryStore(),
+  FakeNotifications(),
+  FakeCalendar(),
+  () => DateTime.utc(2026, 10, 12),
+);
+void main() {
+  setUpAll(tzdata.initializeTimeZones);
+  testWidgets('two icon tabs navigate to profile and timetable', (
+    tester,
+  ) async {
+    final controller = uiController();
+    await controller.initialize();
+    await tester.pumpWidget(HepanApp(controller: controller));
+    await tester.pumpAndSettle();
+    expect(find.bySemanticsLabel('我的'), findsOneWidget);
+    await tester.tap(find.bySemanticsLabel('我的'));
+    await tester.pumpAndSettle();
+    expect(find.text('登录学校账户'), findsOneWidget);
+    expect(find.text('课表设置'), findsOneWidget);
+    await tester.tap(find.bySemanticsLabel('课表'));
+    await tester.pumpAndSettle();
+    expect(find.text('体验示例课表'), findsOneWidget);
+    controller.dispose();
+  });
+  testWidgets('demo reaches Sunday and the last lesson on a small display', (
+    tester,
+  ) async {
+    tester.view.physicalSize = const Size(360, 800);
+    tester.view.devicePixelRatio = 1;
+    addTearDown(tester.view.resetPhysicalSize);
+    addTearDown(tester.view.resetDevicePixelRatio);
+    final controller = uiController();
+    await controller.initialize();
+    await controller.showDemo();
+    await tester.pumpWidget(HepanApp(controller: controller));
+    await tester.pumpAndSettle();
+    expect(find.text('示例课表'), findsOneWidget);
+    expect(find.text('11'), findsOneWidget);
+    await tester.ensureVisible(find.text('周一'));
+    await tester.drag(find.text('周一'), const Offset(-650, 0));
+    await tester.pumpAndSettle();
+    expect(tester.takeException(), isNull);
+    expect(find.text('周日'), findsOneWidget);
+    expect(tester.getCenter(find.text('周日')).dx, lessThan(360));
+    controller.dispose();
+  });
+}

mobile/test/widgets/settings_test.dart

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+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:timezone/data/latest.dart' as tzdata;
+import 'package:hepan_everyday/app/hepan_app.dart';
+
+import 'navigation_test.dart' show uiController;
+
+void main() {
+  setUpAll(tzdata.initializeTimeZones);
+  testWidgets(
+    'invalid semester weeks are rejected without changing saved data',
+    (tester) async {
+      final controller = uiController();
+      await controller.initialize();
+      await tester.pumpWidget(HepanApp(controller: controller));
+      await tester.pumpAndSettle();
+      expect(find.bySemanticsLabel('我的'), findsOneWidget);
+      await tester.tap(find.bySemanticsLabel('我的'));
+      await tester.pumpAndSettle();
+      await tester.ensureVisible(find.text('课表设置'));
+      await tester.pumpAndSettle();
+      await tester.tap(find.text('课表设置'));
+      await tester.pumpAndSettle();
+      await tester.scrollUntilVisible(
+        find.byKey(const Key('semester-weeks')),
+        300,
+        scrollable: find.byType(Scrollable).last,
+      );
+      await tester.enterText(find.byKey(const Key('semester-weeks')), '31');
+      await tester.ensureVisible(find.text('保存学期设置'));
+      await tester.tap(find.text('保存学期设置'));
+      await tester.pumpAndSettle();
+      expect(find.text('周数应为 1–30'), findsOneWidget);
+      expect(controller.snapshot.settings.semester, isNull);
+      controller.dispose();
+    },
+  );
+  testWidgets('two hundred percent font demo has no overflow', (tester) async {
+    tester.view.physicalSize = const Size(360, 800);
+    tester.view.devicePixelRatio = 1;
+    addTearDown(tester.view.resetPhysicalSize);
+    addTearDown(tester.view.resetDevicePixelRatio);
+    tester.platformDispatcher.textScaleFactorTestValue = 2;
+    addTearDown(tester.platformDispatcher.clearTextScaleFactorTestValue);
+    final controller = uiController();
+    await controller.initialize();
+    await controller.showDemo();
+    await tester.pumpWidget(HepanApp(controller: controller));
+    await tester.pumpAndSettle();
+    await tester.scrollUntilVisible(
+      find.text('示例课表'),
+      250,
+      scrollable: find.byType(Scrollable).first,
+    );
+    expect(find.text('示例课表'), findsOneWidget);
+    expect(tester.takeException(), isNull);
+    controller.dispose();
+  });
+}

mobile/test/widgets/timetable_test.dart

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+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:timezone/data/latest.dart' as tzdata;
+import 'package:hepan_everyday/features/timetable/week_grid.dart';
+import 'package:hepan_everyday/domain/schedule_engine.dart';
+import 'package:hepan_everyday/domain/app_settings.dart';
+
+void main() {
+  setUpAll(tzdata.initializeTimeZones);
+  testWidgets('transitive lesson conflicts never cover another course card', (
+    tester,
+  ) async {
+    final term = Semester(startDate: DateTime(2026, 9, 7), totalWeeks: 1);
+    Course c(String name, int first, int last) => Course(
+      id: name,
+      name: name,
+      teacher: 'T',
+      room: 'R',
+      weekday: 1,
+      startPeriod: first,
+      endPeriod: last,
+      weeks: {1},
+      source: CourseSource.file,
+    );
+    final events = ScheduleEngine.occurrences([
+      c('A', 1, 2),
+      c('B', 2, 3),
+      c('C', 3, 4),
+    ], term);
+    await tester.pumpWidget(
+      MaterialApp(
+        home: Scaffold(
+          body: SingleChildScrollView(
+            child: WeekGrid(
+              events: events,
+              monday: term.firstMonday,
+              today: term.startDate,
+              settings: const AppSettings(),
+            ),
+          ),
+        ),
+      ),
+    );
+    await tester.pumpAndSettle();
+    final a = tester.getRect(find.bySemanticsLabel('A，T，R'));
+    final b = tester.getRect(find.bySemanticsLabel('B，T，R'));
+    final cRect = tester.getRect(find.bySemanticsLabel('C，T，R'));
+    expect(a.right, lessThanOrEqualTo(b.left));
+    expect(b.right, lessThanOrEqualTo(cRect.left));
+  });
+}