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LangSmith Hub pullPromptCommit manifest omits custom base_url and uses wrong secret id for OpenAI-compatible models
When a prompt is configured in LangSmith UI with an OpenAI-compatible provider, custom base_url (e.g., OpenRouter) and a custom API key env name (e.g., OPENROUTER_API_KEY), the Playground works correctly but Client.pullPromptCommit returns a manifest for the same commit that omits base_url and resolves the secret to OPENAI_API_KEY, causing 401/wrong endpoint in application code.