123db98635
The guide said a proxy root like http://localhost:4000/gemini "works the same" as spelling out /v1beta, but the chat/aux clients only take the native Gemini adapter when is_native_gemini_base_url() matches the generativelanguage.googleapis.com host; normalize_gemini_base_url() applies to the Google host, TTS and the tier probe. Reword the docs to those cases and tell proxy users to configure an OpenAI-compatible URL. Also note in the normalize_gemini_base_url docstring that only the last path segment is inspected and that it does not decide routing.