feat: select school terms and smooth refractive Dock motion

mobile/test/school/school_session_flow_test.dart

@@ -3,6 +3,7 @@ import 'dart:async';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:webview_flutter_platform_interface/webview_flutter_platform_interface.dart';
 import 'package:hepan_everyday/features/school/school_session.dart';
+import 'package:hepan_everyday/domain/school_term.dart';
 import 'package:hepan_everyday/features/school/school_exam_adapter.dart';
 
 import '../support/fake_school_web.dart';
@@ -26,7 +27,7 @@ void main() {
   }
 
   test('graduate logout function automatically opens timetable without an exit anchor', () async {
-    await session.open();
+    await session.openTimetable(term: SchoolTerm(73));
     platform.web.javascript = (script) async =>
         script.contains("typeof window.logout")
         ? schoolPageEvidence(topUrl: platform.web.url!, authenticated: true)
@@ -37,7 +38,7 @@ void main() {
   });
 
   test('manual graduate page reads recognized embedded timetable instead of restarting login', () async {
-    await session.open();
+    await session.openTimetable(term: SchoolTerm(73));
     const home = 'https://yjsjy.uestc.edu.cn/pyxx/home/index';
     platform.web.url = home;
     platform.web.javascript = (_) async => schoolPageEvidence(
@@ -53,7 +54,7 @@ void main() {
   test(
     'closed authentication screen ignores later page-finished callbacks',
     () async {
-      await session.open();
+      await session.openTimetable(term: SchoolTerm(73));
       session.setReadingActive(true);
       session.setReadingActive(false);
       platform.web.javascript = (_) async =>
@@ -68,7 +69,7 @@ void main() {
   test(
     'asynchronous timetable DOM is imported without another navigation',
     () async {
-      await session.open();
+      await session.openTimetable(term: SchoolTerm(73));
       session.setReadingActive(true);
       var ready = false;
       platform.web.javascript = (_) async => schoolPageEvidence(
@@ -88,7 +89,7 @@ void main() {
   );
 
   test('stale script response cannot cancel polling on a newer page', () async {
-    await session.open();
+    await session.openTimetable(term: SchoolTerm(73));
     session.setReadingActive(true);
     final old = Completer<Object>();
     platform.web.javascript = (_) => old.future;
@@ -116,7 +117,7 @@ void main() {
   });
 
   test('external document evidence cannot become a school import', () async {
-    await session.open();
+    await session.openTimetable(term: SchoolTerm(73));
     platform.web.url = SchoolSession.timetableUrl.toString();
     for (final url in [
       'https://evil.test/pyxx/pygl/xskbcx/index/1',
@@ -135,7 +136,7 @@ void main() {
   });
 
   test('read-current recovery imports a frame and never reloads SSO', () async {
-    await session.open();
+    await session.openTimetable(term: SchoolTerm(73));
     const home = 'http://yjsjy.uestc.edu.cn/pyxx/home/index';
     platform.web.url = home;
     platform.web.javascript = (_) async => schoolPageEvidence(
@@ -152,7 +153,7 @@ void main() {
   test(
     'authenticated graduate root dashboard automatically opens timetable',
     () async {
-      await session.open();
+      await session.openTimetable(term: SchoolTerm(73));
       const home = 'http://yjsjy.uestc.edu.cn/pyxx?targetUrl=-1';
       final decision = await platform.delegate.navigation(
         const NavigationRequest(url: home, isMainFrame: true),
@@ -169,7 +170,7 @@ void main() {
   test(
     'obsolete automatic request failure preserves a newer pending import',
     () async {
-      await session.open();
+      await session.openTimetable(term: SchoolTerm(73));
       final oldRequest = Completer<void>();
       platform.web.request = (_) => oldRequest.future;
       platform.web.javascript = (_) async =>
@@ -190,7 +191,7 @@ void main() {
   );
 
   test('actual session follows service login then reads exam HTML', () async {
-    await session.openExams();
+    await session.openExams(term: SchoolTerm(73));
     expect(platform.web.loads.single, SchoolSession.authUrl.toString());
     navigate('https://idas.uestc.edu.cn/authserver/login?service=graduate');
     await flushSchoolEvents();
@@ -216,7 +217,7 @@ void main() {
   test(
     'obsolete main-frame error cannot interrupt a newer exam read',
     () async {
-      await session.openExams();
+      await session.openExams(term: SchoolTerm(73));
       platform.web.javascript = (_) async => schoolPageEvidence(
         topUrl: platform.web.url!,
         html: examHtml(),
@@ -240,11 +241,11 @@ void main() {
   test(
     'open waits for logout so old clearing cannot blank the new login',
     () async {
-      await session.open();
+      await session.openTimetable(term: SchoolTerm(73));
       platform.cookies.clearing = Completer<bool>();
       final closing = session.logout();
       await flushSchoolEvents();
-      final reopening = session.openExams();
+      final reopening = session.openExams(term: SchoolTerm(73));
       await flushSchoolEvents();
       platform.cookies.clearing!.complete(true);
       await closing;
@@ -257,11 +258,11 @@ void main() {
   test(
     'acknowledging an old saved draft preserves a newer pending import',
     () async {
-      await session.openExams();
+      await session.openExams(term: SchoolTerm(73));
       final old = SchoolExamAdapter.extract(examHtml());
       session.pendingExams = old;
       final generation = session.pageGeneration;
-      await session.openExams();
+      await session.openExams(term: SchoolTerm(73));
       final newer = SchoolExamAdapter.extract(examHtml(room: '品学楼A101'));
       session.pendingExams = newer;
       expect(
@@ -283,7 +284,7 @@ void main() {
   test(
     'native logout failure is reported and subsequent login can recover',
     () async {
-      await session.open();
+      await session.openTimetable(term: SchoolTerm(73));
       session.connectionState = SchoolConnectionState.connected;
       platform.cookies.clearing = Completer<bool>();
       final closing = session.logout();
@@ -294,12 +295,12 @@ void main() {
       expect(await result, isTrue);
       expect(session.connectionState, isNot(SchoolConnectionState.connected));
       expect(session.message, contains('退出未完成'));
-      await session.openExams();
+      await session.openExams(term: SchoolTerm(73));
       expect(platform.web.loads.last, SchoolSession.authUrl.toString());
     },
   );
   test('university HTTP identity redirect upgrades to HTTPS with service preserved', () async {
-    await session.open();
+    await session.openTimetable(term: SchoolTerm(73));
     const redirect =
         'http://idas.uestc.edu.cn/authserver/login?service=http%3A%2F%2Fyjsjy.uestc.edu.cn%2Fpyxx%2Fjzsso%2Flogin';
     final decision = await platform.delegate.navigation(