Feature Request: update OpenCode OpenAI auth when switching accounts

[tlerbao]

Hi, thanks for the project.

I would like to request support for updating OpenCode's OpenAI authorization when switching accounts manually or via auto-switch.

Current problem:

• codex-auth can switch the Codex account
• but OpenCode still keeps its previous OpenAI auth state
• so after switching accounts, I still need to manually update / refresh the OpenCode authorization separately

This makes the workflow inconvenient, especially when switching accounts frequently.

Requested behavior:

1. When switching accounts manually, also update the OpenCode OpenAI auth used by opencode
2. When auto-switch happens, keep OpenCode auth in sync as well
3. Ideally this should work for the common local auth files / locations automatically, or at least provide an optional command / flag for syncing OpenCode auth

The goal is to make account switching fully consistent across Codex and OpenCode, so users do not have to re-authorize OpenCode by hand after every switch.

Thanks.