REPL: `gh models run` fails with `Error: bad request`

[StefMa]

Some models, I have no overview about which one, fails with

>>> Cool
Error: bad request
{"error":{"code":"Bad Request","message":"{\"message\":\"invalid request: all elements in history must have a message.\"}","status":400}}

Usage:
  gh models run [model] [prompt] [flags]

Examples:
gh models run openai/gpt-4o-mini "how many types of hyena are there?"

See also this video:

Screen.Recording.2025-06-20.at.10.56.42.AM.mov

I used the latest 0.0.19 version.

Might be similar to #65 🤷