feat: 实现 Auth 全局状态机与 401 统一处理机制
- 新增 AuthSessionInvalidated 事件处理 token 失效场景 - ApiInterceptor 新增 authFailureCallback 单飞机制 - AuthBloc 区分 manual logout 与 auto expiry 语义 - 新增 startup recovery fallback 防止启动卡死 feat: 重构 Calendar DayWeek 视图事件布局引擎 - 新增 DayEventLayoutEngine 解耦事件计算与渲染 - 新增 DayTimelineMetrics 统一时间轴常量 - 新增 DayViewScale 支持捏合缩放 feat: 新增 Settings 页面共享 UI 组件 - 新增 BackTitlePageHeader 统一页面 header - 新增 DetailHeaderActionMenu 统一操作菜单 - 新增 DestructiveActionSheet 统一删除确认 - 新增 AppToggleSwitch 统一开关组件 feat: Chat UI Schema 支持导航操作 - 支持 navigation 类型 action 触发内部路由跳转 - 新增路径验证与参数处理 chore: 更新相关测试覆盖 auth 失效路径
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# Auth 全局模块重写设计（跨端并存、同端互斥）
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## 1. 目标
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- 彻底消除 Auth 分裂状态：`token` 状态与 `AuthBloc` 状态必须单一真相源。
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- 会话策略升级为：
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- 同账号允许跨端并存：`mobile + web + desktop`
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- 同账号同端互斥：同端新登录会挤下线旧设备
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- 保证任何 401 链路在刷新失败后都能统一收敛为“未登录 + 清理本地 + 路由回到登录页”。
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- 消除设备差异导致的不一致行为（部分机型“假登录”或“卡死页”）。
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## 2. 边界与约束
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- 仅重写 `apps/**` 的 Auth 客户端架构与规则，不改后端协议语义。
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- 保持现有登录/注册 UI 路由入口，避免用户操作路径变化。
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- 认证属于高风险域，重写必须覆盖：
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- 启动恢复
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- 运行时 token 过期
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- 并发 401
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- 手动登出与自动过期登出的差异行为
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## 3. 核心架构
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### 3.1 单一真相源（Single Source of Truth）
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- `AuthBloc` 成为唯一认证状态源。
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- `ApiInterceptor` 只负责协议级拦截与刷新，不直接做路由跳转。
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- 401 刷新失败时，`ApiInterceptor -> ApiClient callback -> AuthBloc(AuthSessionInvalidated)`。
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- 路由守卫只看 `AuthBloc` 状态，不再做隐式 token 判定。
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### 3.2 会话状态机
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- `AuthInitial`
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- `AuthLoading`（启动恢复/会话检查）
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- `AuthAuthenticated(user)`
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- `AuthUnauthenticated(reason)`
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`reason` 取值：
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- `signedOut`
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- `expired`
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- `startupRecoveryFailed`
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### 3.3 登出语义分离
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- 手动登出：`deleteSession()`
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- 尝试调用后端注销
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- 最终清本地
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- 自动过期：`clearSessionLocalOnly()`
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- 仅清本地
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- 不调用后端注销接口
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### 3.4 并发与抖动控制
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- `ApiInterceptor` 继续使用 refresh singleflight。
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- 新增 auth failure singleflight：多并发 401 刷新失败，只触发一次全局会话失效事件。
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### 3.5 设备差异治理
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- 启动时 token 读取异常必须兜底：进入 `AuthUnauthenticated(startupRecoveryFailed)`，避免卡死在 Boot。
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- `FlutterSecureStorage` 显式平台配置：
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- Android 使用 `encryptedSharedPreferences`
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- iOS 指定 keychain accessibility（保证行为稳定）
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## 4. 数据流
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### 4.1 冷启动
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1. `main` 触发 `AuthStarted`
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2. `AuthBloc` 读取 refresh token
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3. 有 refresh token -> 刷新会话 -> 成功进入 `AuthAuthenticated`
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4. 无 token 或异常 -> `AuthUnauthenticated(startupRecoveryFailed)`
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### 4.2 运行时 API 请求
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1. 请求携带 access token
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2. 401 -> 触发 refresh
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3. refresh 成功 -> 自动重试原请求
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4. refresh 失败 -> 触发一次全局 auth failure
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5. `AuthBloc` 收到 `AuthSessionInvalidated(expired)` -> 清本地 -> `AuthUnauthenticated(expired)`
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6. Router 根据状态回登录页
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## 5. 测试策略
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- `AuthBloc`：
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- 启动读取 refresh token 异常兜底
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- session invalidated 事件导致统一未登录
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- `ApiInterceptor`：
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- 并发 401 refresh 失败仅触发一次 auth failure
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- `AuthRepository`：
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- 手动登出 vs 自动过期清理行为差异
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## 6. 迁移计划
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- 先引入新事件/新回调/新状态原因，不改 UI 交互。
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- 再改路由守卫识别未登录原因。
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- 最后补齐 `apps/AGENTS.md` Auth 强约束，防止后续回归为“各处乱写”。
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## 7. 风险与回滚
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- 风险：回调链路接错导致频繁误登出。
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- 规避：并发 singleflight + 精确触发条件（仅 401 refresh 失败）。
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- 回滚：保留旧事件兼容层，出现异常可快速退回旧路由判定。
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# Auth Global Rewrite Implementation Plan
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> **For Claude:** REQUIRED SUB-SKILL: Use superpowers:executing-plans to implement this plan task-by-task.
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**Goal:** 将 Flutter 客户端 Auth 重构为全局单一状态源，解决 401 后会话不一致、页面卡死和设备行为分裂问题。
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**Architecture:** 以 `AuthBloc` 为唯一认证真相源，`ApiInterceptor` 仅负责协议层刷新与失败信号上抛。401 刷新失败后通过统一回调触发 `AuthSessionInvalidated`，由 `AuthBloc` 执行本地会话失效与状态切换，Router 仅根据 Auth 状态跳转。
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**Tech Stack:** Flutter, flutter_bloc, dio, flutter_secure_storage, flutter_test, mocktail, bloc_test
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---
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### Task 1: 定义 Auth 失效语义与事件模型
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**Files:**
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- Modify: `apps/lib/features/auth/presentation/bloc/auth_event.dart`
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- Modify: `apps/lib/features/auth/presentation/bloc/auth_state.dart`
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- Test: `apps/test/features/auth/presentation/bloc/auth_bloc_test.dart`
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**Step 1: Write the failing test**
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新增失败测试：收到 session invalidated 事件后，状态应进入 `AuthUnauthenticated(expired)`。
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**Step 2: Run test to verify it fails**
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Run: `flutter test test/features/auth/presentation/bloc/auth_bloc_test.dart`
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Expected: FAIL（事件/状态原因不存在）
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**Step 3: Write minimal implementation**
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新增失效来源枚举、失效事件、未登录原因字段。
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**Step 4: Run test to verify it passes**
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Run: `flutter test test/features/auth/presentation/bloc/auth_bloc_test.dart`
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Expected: PASS
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### Task 2: 重写 AuthBloc 启动恢复与失效收敛逻辑
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**Files:**
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- Modify: `apps/lib/features/auth/presentation/bloc/auth_bloc.dart`
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- Modify: `apps/lib/features/auth/data/auth_repository.dart`
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- Modify: `apps/lib/features/auth/data/auth_repository_impl.dart`
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- Test: `apps/test/features/auth/presentation/bloc/auth_bloc_test.dart`
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- Test: `apps/test/features/auth/data/auth_repository_test.dart`
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**Step 1: Write failing tests**
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- 启动读取 refresh token 抛异常 -> `AuthUnauthenticated(startupRecoveryFailed)`
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- 自动过期登出只清本地不调后端
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**Step 2: Run tests to verify failure**
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Run: `flutter test test/features/auth/presentation/bloc/auth_bloc_test.dart test/features/auth/data/auth_repository_test.dart`
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Expected: FAIL
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**Step 3: Implement minimal code**
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- `AuthBloc._onStarted` 增加异常兜底
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- `AuthRepository` 新增 `clearSessionLocalOnly()`
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- `AuthBloc` 处理 `AuthSessionInvalidated`
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**Step 4: Run tests to verify pass**
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Run: `flutter test test/features/auth/presentation/bloc/auth_bloc_test.dart test/features/auth/data/auth_repository_test.dart`
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Expected: PASS
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### Task 3: 改造 ApiInterceptor / ApiClient 全局失效回调链
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**Files:**
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- Modify: `apps/lib/core/api/api_interceptor.dart`
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- Modify: `apps/lib/core/api/api_client.dart`
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- Modify: `apps/lib/core/di/injection.dart`
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- Test: `apps/test/core/api/api_interceptor_test.dart`
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**Step 1: Write failing test**
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并发 401 + refresh 失败时，`onAuthFailure` 仅触发一次。
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**Step 2: Run test to verify it fails**
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Run: `flutter test test/core/api/api_interceptor_test.dart`
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Expected: FAIL
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**Step 3: Implement minimal code**
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- interceptor 新增 auth failure singleflight
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- api client 新增 `setAuthFailureCallback`
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- DI 中将回调绑定到 `AuthBloc(AuthSessionInvalidated)`
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**Step 4: Run test to verify pass**
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Run: `flutter test test/core/api/api_interceptor_test.dart`
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Expected: PASS
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### Task 4: 平台安全存储配置与稳定性增强
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**Files:**
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- Modify: `apps/lib/core/di/injection.dart`
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**Step 1: Add platform options**
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为 `FlutterSecureStorage` 显式设置 Android/iOS 选项，减少机型差异。
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**Step 2: Run targeted tests/analyze**
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Run: `flutter analyze lib/core/di/injection.dart`
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Expected: PASS
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### Task 5: 路由与使用点适配
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**Files:**
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- Modify: `apps/lib/core/router/app_router.dart`
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- Modify: `apps/lib/features/settings/ui/screens/account_screen.dart`
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- Modify: `apps/lib/features/settings/ui/screens/change_password_screen.dart`
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**Step 1: Update route/auth checks**
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兼容 `AuthUnauthenticated(reason)` 新结构，保持原有登录流 UX。
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**Step 2: Run focused tests**
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Run: `flutter test test/features/auth`
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Expected: PASS
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### Task 6: 增加 Auth 全局强约束
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**Files:**
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- Modify: `apps/AGENTS.md`
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**Step 1: Add mandatory auth rules**
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新增“Auth 全局模块（MUST）”章节：
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- 401 只允许走统一失效回调链
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- 禁止 feature 私自清 token/私自跳登录
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- Auth 状态只能由全局模块写入
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**Step 2: Verify docs consistency**
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Run: `git diff -- apps/AGENTS.md`
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Expected: 仅新增约束，不改现有视觉/UI强规则
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### Task 7: 全量验证
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**Files:**
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- Modify if needed after fixes
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**Step 1: Run test suites**
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Run: `flutter test test/core/api/api_interceptor_test.dart test/features/auth`
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**Step 2: Run analyze on touched auth scope**
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Run: `flutter analyze lib/core/api lib/features/auth lib/core/router/app_router.dart lib/core/di/injection.dart`
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**Step 3: Report residual risks**
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输出剩余风险、可观测性建议、生产灰度建议。
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