```

feat: 添加飞书集成和审计API密钥认证

- 在数据库配置中添加飞书模型导入
- 添加审计API密钥配置项和认证中间件
- 实现飞书事件重复处理防止机制
- 为审批路由添加API密钥认证
- 优化AI适配器错误处理并添加JSON解析异常捕获
- 更新测试用例以包含新的认证和事件处理逻辑
```

app/modules/feishu/constants.py

@@ -11,6 +11,12 @@ class FeishuMessageType(StrEnum):
 
 
 class FeishuPayloadKey(StrEnum):
+    HEADER = "header"
+    EVENT = "event"
+    EVENT_ID = "event_id"
+    EVENT_TYPE = "event_type"
+    MESSAGE = "message"
+    MESSAGE_ID = "message_id"
     RECEIVE_ID = "receive_id"
     RECEIVE_ID_TYPE = "receive_id_type"
     MESSAGE_TYPE = "msg_type"
@@ -38,3 +44,5 @@ FEISHU_RECEIVE_ID_MISSING = "receive_id or FEISHU_DEFAULT_CHAT_ID is required"
 FEISHU_SUCCESS_CODE = 0
 FEISHU_DEFAULT_TOKEN_EXPIRE_SECONDS = 7200
 FEISHU_TOKEN_EXPIRE_SAFETY_SECONDS = 300
+FEISHU_WEBHOOK_EVENT_ACTION = "webhook_event"
+FEISHU_LONG_CONNECTION_EVENT_ACTION = "long_connection_event"