v1.9.3

Patch release for provider-scoped FastAPI client configuration.

Bugfixes

• fix(fastapi): scope Codex client_config.base_url by LiteLLM provider (#630) — closes #629.

This patch preserves the documented client_config.base_url + litellm_keys proxy pattern, only strips the Codex OAuth base_url when the target provider is non-OpenAI-compatible, and adds focused tests around the provider-scoped behavior.

Full Changelog: v1.9.2...v1.9.3