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/specs/logging/spec.md

@@ -1,14 +1,17 @@
 ## MODIFIED Requirements
 
 ### Requirement: Log Reading from Redis
+
 The system SHALL read log records from per-project Redis keys.
 
 #### Scenario: External project writes console logs
+
 - **WHEN** an external project emits debug/error information
 - **THEN** it SHALL append entries to a Redis LIST key named `${projectName}_项目控制台`
 - **AND** each entry SHALL be a JSON string representing a log record
 
 #### Scenario: Server reads project console logs
+
 - **WHEN** the server is configured to show a given project
 - **THEN** it SHALL read entries from `${projectName}_项目控制台`
 - **AND** it SHALL present them in the console UI with timestamp, level and message