feat(mobile): login, password change and logout screens
P3 Task 3 移动端（对接 Task 2 api client + 本任务新增的后端契约）： - 登录页实装：账号/密码表单（空值客户端校验）→ api.login（会话自动 持久化）→ pushReplacement /home；错误码本地化（AUTH_INVALID_ CREDENTIALS / AUTH_RATE_LIMITED（含稍后再试文案）/ 网络 / 校验）； 提交加载态防重复提交。 - 修改密码页（设置页入口）：当前/新/确认三字段，客户端校验（≥8 位、 两次一致）→ api.changePassword → toast + pop；成功后本地会话不变 （服务端保留当前会话）；旧密码错误（401 AUTH_INVALID_CREDENTIALS） 显示「当前密码错误」且不触发 401 驱逐。 - 退出登录：设置页按钮 → api.logout 尽力而为 → 清会话 → 清栈回 /login；App 壳 initState 注册 onUnauthorized（业务 401 → 清栈 /login）， 根 navigatorKey 接线；password-change 的 401 豁免会话驱逐（拦截器 豁免集合与令牌附加分离）。 - l10n：新增 16 组 zh/en 文案；错误码 → 文案解析扩展 （core/error_l10n.dart，errorCode→AppLocalizations）。 - 测试：ApiClient.changePassword 单测 ×2（Bearer+请求体；旧密码 401 不驱逐）；widget 测试 ×12（登录 5：空值/成功跳转/凭据错误/限速文案/ 加载禁用；改密 4：过短/不一致/旧密码错误文案+会话保留/成功 toast+pop 且令牌不变；设置 2：改密入口跳转/登出清会话回登录；App 壳 1：401 清栈回 /login）。flutter analyze 0 issue；flutter test 81/81。 Co-Authored-By: Claude Code <noreply@anthropic.com>
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浅念
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/// 修改密码页 widget 测试（P3 计划 Task 3）。
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///
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/// 覆盖：客户端校验（新密码 ≥8、两次一致；不发请求）、旧密码错误
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/// （401 AUTH_INVALID_CREDENTIALS）→「当前密码错误」文案且本地会话保留
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/// （password-change 的 401 不驱逐）、成功 → toast + pop 回上级且
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/// 会话令牌不变（服务端保留当前会话语义）。
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library;
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import 'package:dio/dio.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:photo_live/core/api_client.dart';
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import 'package:photo_live/core/error_codes.dart';
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import 'package:photo_live/core/session_store.dart';
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import 'package:photo_live/l10n/app_localizations.dart';
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import 'package:photo_live/pages/password_change_page.dart';
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import '../helpers/fakes.dart';
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void main() {
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late FakeSessionStore store;
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late int unauthorizedCalls;
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setUp(() {
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store = FakeSessionStore();
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unauthorizedCalls = 0;
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});
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ApiClient clientOf(FakeAdapter adapter) => ApiClient(
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sessionStore: store,
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dio: Dio(BaseOptions(baseUrl: 'http://test.local'))
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..httpClientAdapter = adapter,
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)..onUnauthorized = () => unauthorizedCalls++;
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void seedSession() {
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store.session = Session(
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token: 'tok-live-1',
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expiresAt: DateTime.utc(2099, 1, 1),
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account: 'staff01',
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);
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}
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Future<void> pumpOverMarker(WidgetTester tester, ApiClient client) async {
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await tester.pumpWidget(
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ProviderScope(
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overrides: [apiClientProvider.overrideWith((ref) => client)],
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child: MaterialApp(
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localizationsDelegates: AppLocalizations.localizationsDelegates,
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supportedLocales: AppLocalizations.supportedLocales,
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home: const Scaffold(body: Center(child: Text('MARK'))),
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routes: {
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'/password-change': (context) => const PasswordChangePage(),
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},
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),
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),
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);
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tester.state<NavigatorState>(find.byType(Navigator).first)
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.pushNamed('/password-change');
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await tester.pumpAndSettle();
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}
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Future<void> fill(
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WidgetTester tester, {
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String oldPw = 'old-pass-123',
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String newPw = 'brand-new-pass-9',
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String confirmPw = 'brand-new-pass-9',
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}) async {
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await tester.enterText(
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find.widgetWithText(TextFormField, 'Current password'),
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oldPw,
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);
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await tester.enterText(
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find.widgetWithText(TextFormField, 'New password'),
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newPw,
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);
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await tester.enterText(
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find.widgetWithText(TextFormField, 'Confirm new password'),
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confirmPw,
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);
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}
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testWidgets('新密码过短 → 客户端校验提示，不发请求', (tester) async {
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seedSession();
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final adapter = FakeAdapter((_) => throw StateError('不应发起请求'));
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await pumpOverMarker(tester, clientOf(adapter));
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await fill(tester, newPw: 'short7', confirmPw: 'short7');
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await tester.tap(find.widgetWithText(FilledButton, 'Change password'));
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await tester.pump();
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expect(
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find.text('New password must be at least 8 characters'),
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findsOneWidget,
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);
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expect(adapter.requests, isEmpty);
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});
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testWidgets('两次新密码不一致 → 校验提示，不发请求', (tester) async {
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seedSession();
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final adapter = FakeAdapter((_) => throw StateError('不应发起请求'));
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await pumpOverMarker(tester, clientOf(adapter));
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await fill(tester, confirmPw: 'different-pass-9');
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await tester.tap(find.widgetWithText(FilledButton, 'Change password'));
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await tester.pump();
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expect(
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find.text('New passwords do not match'),
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findsOneWidget,
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);
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expect(adapter.requests, isEmpty);
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});
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testWidgets('旧密码错误（401）→ 「当前密码错误」文案，会话保留不驱逐', (tester) async {
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seedSession();
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final adapter = FakeAdapter(
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(o) => o.path == '/v1/auth/password-change'
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? (401, errorBody(ErrorCodes.authInvalidCredentials))
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: throw StateError('unexpected ${o.path}'),
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);
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await pumpOverMarker(tester, clientOf(adapter));
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await fill(tester);
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await tester.tap(find.widgetWithText(FilledButton, 'Change password'));
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await tester.pumpAndSettle();
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expect(find.text('Current password is incorrect'), findsOneWidget);
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expect(store.session?.token, 'tok-live-1', reason: '旧密码错误不清会话');
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expect(unauthorizedCalls, 0, reason: 'password-change 的 401 不驱逐');
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expect(find.text('MARK'), findsNothing, reason: '停留在修改密码页');
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});
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testWidgets('成功 → toast + pop 回上级；会话令牌不变（当前会话保留）', (tester) async {
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seedSession();
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final adapter = FakeAdapter(
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(o) => o.path == '/v1/auth/password-change'
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? (204, null)
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: throw StateError('unexpected ${o.path}'),
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);
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await pumpOverMarker(tester, clientOf(adapter));
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await fill(tester);
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await tester.tap(find.widgetWithText(FilledButton, 'Change password'));
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await tester.pumpAndSettle();
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final req = adapter.requests.single;
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expect(req.method, 'POST');
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expect(req.path, '/v1/auth/password-change');
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expect(req.headers['Authorization'], 'Bearer tok-live-1');
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expect(req.body, {
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'oldPassword': 'old-pass-123',
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'newPassword': 'brand-new-pass-9',
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});
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expect(find.text('Password changed'), findsOneWidget);
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expect(find.text('MARK'), findsOneWidget, reason: '成功后 pop 回上级');
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expect(
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store.session?.token,
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'tok-live-1',
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reason: '服务端保留当前会话：本地令牌无需变更',
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);
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});
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}
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