```

feat(feishu): 添加飞书入站事件inbox和混合数据库协调功能

- 实现飞书入站事件持久化inbox机制，支持状态管理、租约锁定和重试退避
- 添加混合数据库基线协调工具，确保平台PostgreSQL结构安全对齐
- 增加运行组件心跳检测和readiness就绪检查机制
- 实现app_ticket事件的安全轮换和验证处理
- 添加生产环境运行编排和fail-closed安全机制
- 支持webhook快速确认和长连接独立进程处理
- 完善个人数据擦除时的待处理事件清理功能
```

app/modules/observability/constants.py

@@ -6,13 +6,16 @@ class ObservabilityKey(StrEnum):
     CHECKS = "checks"
     METRICS = "metrics"
     DATABASE = "database"
+    SCHEMA = "schema"
     REDIS = "redis"
     EVENTS = "events"
     WORKFLOWS = "workflows"
     AI_MEMORY = "ai_memory"
     HEARTBEATS = "heartbeats"
+    API = "api"
     SCHEDULER = "scheduler"
     WORKER = "worker"
+    FEISHU_EVENTS = "feishu_events"
 
 
 class ObservabilityStatus(StrEnum):
@@ -40,7 +43,9 @@ class HeartbeatComponent(StrEnum):
     API = "api"
     SCHEDULER = "scheduler"
     WORKER = "worker"
+    FEISHU_EVENTS = "feishu-events"
 
 
 class HeartbeatStatus(StrEnum):
     OK = "ok"
+    DEGRADED = "degraded"