bug: 更新到最新版本后，无法在左侧侧边栏添加项目，希望参考codex的一个项目支持多个代码仓库

### 问题描述 / What happened

### 环境 / Environment

- Cindy 版本或 commit / version or commit:0.1.48
- 平台与版本 / platform & OS version:
- 安装方式 / install method:

### 复现步骤 / Steps to reproduce

更新到0.1.48，无法在左侧添加项目，无法引入代码仓库

### 日志与截图 / Logs & screenshots

_No response_

Reproduce the project-adding and code-repository import flow after updating to Cindy 0.1.48, using the reported left sidebar behavior as the starting point. Compare the sidebar and project flow with the previous version or the referenced Codex behavior; done means projects can again be added from the sidebar and a code repository can be imported.

Written by the indexing model from the issue text.