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/proposal.md

@@ -1,13 +1,16 @@
 # Change: Update Redis Integration Protocol
 
 ## Why
+
 需要为“BLS Project Console ↔ 其他业务项目”的 Redis 交互约定一个稳定、可机器生成的协议，明确每个接入项目必须写入的状态与控制台信息，以及必须读取的控制指令队列。
 
 ## What Changes
+
 - 统一 Redis Key 命名规则：每个项目写 2 个 key、读 1 个 key
 - 明确每个 key 的 Redis 数据类型（STRING/LIST）与 value 格式（枚举值/JSON）
 - 对齐 logging / command / redis-connection 三个 capability 的 requirements（以便实现端可依据 spec 开发）
 
 ## Impact
+
 - Affected specs: specs/redis-connection/spec.md, specs/logging/spec.md, specs/command/spec.md
 - Affected code (planned): src/backend/routes/, src/backend/services/, src/frontend/components/

openspec/changes/update-redis-protocol/specs/command/spec.md

@@ -1,14 +1,17 @@
 ## MODIFIED Requirements
 
 ### Requirement: Command Sending to Redis
+
 The system SHALL send commands to a per-target Redis key.
 
 #### Scenario: Console enqueues a command for a target project
+
 - **WHEN** the user sends a command from the console
 - **THEN** the backend SHALL append a JSON message to Redis LIST key `${targetProjectName}_控制`
 - **AND** the JSON message SHALL represent the command payload (an object)
 
 #### Scenario: Target project consumes a command
+
 - **WHEN** a target project listens for commands
 - **THEN** it SHALL consume messages from `${projectName}_控制` as JSON objects
 - **AND** it SHOULD use Redis LIST queue semantics (producer `RPUSH`, consumer `BLPOP`)

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

openspec/changes/update-redis-protocol/specs/redis-connection/spec.md

@@ -1,9 +1,11 @@
 ## ADDED Requirements
 
-### Requirement: Per-Project Status Key
-The system SHALL standardize a per-project Redis status key for connected projects.
+### Requirement: Per-Project Heartbeat Key
+
+The system SHALL standardize a per-project Redis heartbeat key for connected projects.
+
+#### Scenario: External project writes heartbeat
 
-#### Scenario: External project writes status
 - **WHEN** an external project integrates with this console
-- **THEN** it SHALL write a Redis STRING key named `${projectName}_项目状态`
-- **AND** the value SHALL be one of: `在线`, `离线`, `故障`, `报错`
+- **THEN** it SHALL write a Redis STRING key named `${projectName}_项目心跳`
+- **AND** the value SHALL be a JSON string containing `apiBaseUrl` and `lastActiveAt`

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)