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P1-1 跨模块直查消除： - homework/data-access-classes.ts 移除对 exams/subjects 表的 JOIN 直查 - 改为调用 exams/data-access.getExamSubjectIdMap + school/data-access.getSubjectNameMapByIds - school/data-access.ts 新增 getSubjectNameMapByIds 批量科目名称映射函数 P1-2 as 断言消除（exam-mode-config.tsx）： - 移除全部 10 处 as 类型断言 - 改用 useFormContext 替代 Control prop，避免 Control<T> 不变型问题 - exam-form.tsx 调用方简化为 <ExamModeConfig />（已集成到考试表单） P1-3 as 断言消除（proctoring-dashboard.tsx）： - 用类型守卫函数 isProctoringEventType + toProctoringEventTypes 替代 Object.keys(...) as ProctoringEventType[] 断言 P0-竞品倒计时（对标智学网/猿题库）： - 新增 hooks/use-exam-countdown.ts 考试倒计时 Hook - homework-take-view.tsx 集成限时/监考模式倒计时显示与到时自动提交 - data-access.ts 的 getStudentHomeworkTakeData 新增 examModeConfig + startedAt 字段 - types.ts 扩展 StudentHomeworkTakeData 类型 - i18n 补充 timedExam/timeRemaining/timeUpAutoSubmit 翻译键 架构文档同步： - 004/005 更新 homework/proctoring/school/exams 模块导出与依赖关系 - 005 新增 homework.hooks.useExamCountdown 与 school.dataAccess.getSubjectNameMapByIds - 005 依赖矩阵 homework→school 补充 getSubjectNameMapByIds 验证：tsc --noEmit 零错误，eslint 零错误（3 个预存 warning 无关）
This is a Next.js project bootstrapped with create-next-app.
Getting Started
First, run the development server:
npm run dev
# or
yarn dev
# or
pnpm dev
# or
bun dev
Open http://localhost:3000 with your browser to see the result.
You can start editing the page by modifying app/page.tsx. The page auto-updates as you edit the file.
This project uses next/font to automatically optimize and load Geist, a new font family for Vercel.
Learn More
To learn more about Next.js, take a look at the following resources:
- Next.js Documentation - learn about Next.js features and API.
- Learn Next.js - an interactive Next.js tutorial.
You can check out the Next.js GitHub repository - your feedback and contributions are welcome!
Deploy on Vercel
The easiest way to deploy your Next.js app is to use the Vercel Platform from the creators of Next.js.
Check out our Next.js deployment documentation for more details.