`process_orchestration` raises ValidationError of pydantic

Hi, when I try to do orchestration of a service, I get a ValidationError of pydantic. When I debug the code step by step, I realize that `authenticationInfo` couldn't get from core service Orchestration. It's actually null in the database and this doesn't cause an error in Java client. However when I debug and I even change the provider value orchestration response as `authenticationInfo = null`, error continue. Finally, I changed the provider value of orchestration response as `authenticationInfo = ""` and it was fixed. Even provider `authenticationInfo` is nonrequired, `process_orchestration` raises error. I'm sharing debugging screenshots.

`authenticationInfo` is returned from core service Orchestration and there is no exception in Java client
`authenticationInfo` couldn't get from service Orchestration
`authenticationInfo` couldn't get from service Orchestration and error raised from pydantic like below
`authenticationInfo` couldn't get from service Orchestration and I added it as null but error raised from pydantic like below,

跟踪 process_orchestration 对 orchestration response 的处理，重点关注 authenticationInfo 以及报告中展示的 Pydantic 验证。复现 null 值的情况，并将其与空字符串的情况进行比较；完成标准是，值为 null 的可选 authenticationInfo 不再引发 ValidationError。

由索引模型根据 Issue 内容生成。