Initial commit: AuraK人才测评系统基础框架

## 已实现功能
- 题库管理后端API完整实现
- 模板管理页面(Settings-测评模板)
- 评估统计页面
- 人才测评页面(AssessmentView)
- QuestionBank前端服务层

## 技术栈
- 后端: Node.js + NestJS + TypeORM
- 前端: React + TypeScript
- 容器化: Docker Compose

## 已知待完善
- 题库列表页缺少删除按钮
- 题库详情页未实现(题目管理/AI生成/审核)

server/Dockerfile

@@ -10,7 +10,7 @@ RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
 COPY package*.json yarn.lock* ./
 
 # Set yarn registry and install all dependencies (including dev for build)
-RUN yarn config set registry https://registry.npmmirror.com && \
+RUN yarn config set registry https://registry.yarnpkg.com && \
     yarn install
 
 # Copy source code