```

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/approvals/routes.py

@@ -23,12 +23,19 @@ def list_approvals(
     status: str | None = None,
     limit: int = Query(default=100, ge=1, le=500),
     db: Session = Depends(get_db),
+    principal: ApiPrincipal = Depends(require_approval_api_key),
 ):
+    _ = principal
     return ApprovalService(db).list(status_filter=status, limit=limit)
 
 
 @router.get("/{ticket_id}", response_model=ApprovalRead)
-def get_approval(ticket_id: str, db: Session = Depends(get_db)):
+def get_approval(
+    ticket_id: str,
+    db: Session = Depends(get_db),
+    principal: ApiPrincipal = Depends(require_approval_api_key),
+):
+    _ = principal
     return ApprovalService(db).get_by_ticket(ticket_id)