第一版提交，答题功能OK，题库管理待完善

api/controllers/index.ts

@@ -0,0 +1,10 @@
+// 导出所有控制器
+export { UserController } from './userController';
+export { QuestionController } from './questionController';
+export { QuizController } from './quizController';
+export { AdminController } from './adminController';
+export { BackupController } from './backupController';
+export { QuestionCategoryController } from './questionCategoryController';
+export { ExamSubjectController } from './examSubjectController';
+export { ExamTaskController } from './examTaskController';
+export { AdminUserController } from './adminUserController';