feat: 重构项目心跳数据结构并实现项目列表API

- 新增统一项目列表Redis键和迁移工具
- 实现GET /api/projects端点获取项目列表
- 实现POST /api/projects/migrate端点支持数据迁移
- 更新前端ProjectSelector组件使用真实项目数据
- 扩展projectStore状态管理
- 更新相关文档和OpenSpec规范
- 添加测试用例验证新功能

openspec/changes/update-redis-protocol/tasks.md

@@ -1,13 +1,16 @@
 ## 1. Documentation
+
 - [x] 1.1 Add Redis integration protocol doc for external projects
 - [ ] 1.2 Link doc location from README (optional)
 
 ## 2. Backend
+
 - [x] 2.1 Add Redis client config + connection helper
 - [x] 2.2 Implement command enqueue: write `${targetProjectName}_控制` LIST with JSON payload
-- [x] 2.3 Implement log fetch/stream: read `${projectName}_项目控制台` LIST (and status `${projectName}_项目状态` STRING when needed)
+- [x] 2.3 Implement log fetch/stream: read `${projectName}_项目控制台` LIST
 
 ## 3. Frontend
+
 - [x] 3.1 Wire selected project name into Console (targetProjectName)
 - [x] 3.2 Replace simulated command send with API call to backend
 - [x] 3.3 Replace simulated logs with backend-provided logs (polling or SSE)