添加中文文档和详细的本地开发指南

- 添加中文版 README (README_ZH.md)
- 添加详细的本地开发指南 (LOCAL_DEV_ZH.md)
- 添加后端中文文档 (backend/README_ZH.md)
- 添加前端中文文档 (frontend/README_ZH.md)
- 更新项目名称配置

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: tonglu.zt

.env

@@ -13,8 +13,8 @@ FRONTEND_HOST=http://localhost:5173
 # Environment: local, staging, production
 ENVIRONMENT=local
 
-PROJECT_NAME="Full Stack FastAPI Project"
-STACK_NAME=full-stack-fastapi-project
+PROJECT_NAME="DataAnalysis API"
+STACK_NAME=data-analysis-api
 
 # Backend
 BACKEND_CORS_ORIGINS="http://localhost,http://localhost:5173,https://localhost,https://localhost:5173,http://localhost.tiangolo.com"