hide openai models codex auth doesn't support; don't use browser for everything

[laithrw]

Summary by cubic

Hide unsupported OpenAI models for Codex login, make recommended picks fall back to OpenAI auth when Codex isn’t available, and answer casual questions without starting a browser. This reduces auth errors and skips unnecessary browser sessions.

• Bug Fixes
  • Codex accounts seed the model search from bundled_codex_login_model_ids(): show only gpt-5.5, gpt-5.4, gpt-5.4-mini; hide gpt-5.5-pro, gpt-5.4-pro, gpt-5.4-nano, gpt-5.3-codex.
  • Recommended quick-picks adapt at runtime via recommended_models_for_codex_availability(): use Codex when logged in; otherwise use OpenAI and open API key auth.
  • OpenRouter now respects API key auth: resolve the key when present, don’t pre-seed its model list, and allow typed raw ids until the key-scoped fetch returns.
  • Python runtime fixes: per-event-loop write lock and safe queue creation to avoid cross-loop write races and “closed loop” queue errors.

^{Written for commit 994e9bb. Summary will update on new commits.}

[cubic-dev-ai]

No issues found across 3 files

_{Re-trigger cubic}

[cubic-dev-ai]

1 issue found across 3 files (changes from recent commits).

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Fix all with cubic | Re-trigger cubic</sub>