[wish] Fail quickly with exec when using openrouter

When I run exec and codex doesn’t like a profile, it keeps retrying. I’d like it to fail quickly, so this doesn’t happen:

[2025-07-07T13:44:41] OpenAI Codex v0.2.0 (research preview)
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workdir: /Users/user/test
model: nvidia/llama-3.1-nemotron-ultra-253b-v1:free
provider: openrouter
approval: Never
sandbox: danger-full-access
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[2025-07-07T13:44:41] User instructions:
Capital of Poland?
[2025-07-07T13:44:43] stream error: unexpected status 404 Not Found: {"error":{"message":"No endpoints found that support tool use. To learn more about provider routing, visit: https://openrouter.ai/docs/provider-routing","code":404}}; retrying 1/10 in 189ms…
[2025-07-07T13:44:44] stream error: unexpected status 404 Not Found: {"error":{"message":"No endpoints found that support tool use. To learn more about provider routing, visit: https://openrouter.ai/docs/provider-routing","code":404}}; retrying 2/10 in 234ms…