Only select repositories not Public repositories

When defining the Repository access, I think you can't pick "Public repositories".

Trying to debug this, AI gave me:

> The likely root cause: your fine-grained PAT is read-only for public repos when set to “All repositories”
>
> Look closely at your PAT screen:
>
> “All repositories … Also includes public repositories (read-only).”
>
> Your repo mgifford/whisper-slides is public. If GitHub is treating “All repositories” as “read/write for private you own, but public read-only”, then the token will fail exactly where you fail: POST /repos/{owner}/{repo}/issues returns “Resource not accessible by personal access token”.
>
> This matches your error.

ChatGPT recommended that I use Repository access: Only select repositories - and this worked.

首先，使用 fine-grained personal access token 和公开 repository 重现 Repository access 的行为，然后跟踪 GitHub 的 issue 创建集成。完成的标准是确认公开 repository 是否可以被选择并成功使用，或者在这是 GitHub 限制的情况下，记录受支持的访问配置。

由索引模型根据 Issue 内容生成。