[Feature Request]: person related subject list 请求需要添加分页支持

有些角色的参与条目非常多，比如
https://chii.in/person/128/works

https://api.bgm.tv/v0/persons/128/subjects
这个 API 的 response 有 1MB

同样的其他几个 relation 也有这个需要

Start by reading the API entry point for /v0/persons/128/subjects and inspect how person-related subject responses are assembled. Define and verify pagination for that endpoint and the other related lists mentioned in the issue, with completion shown by bounded responses and tests covering page parameters and results.

Written by the indexing model from the issue text.