refactor: migrate ai-groq + ai-openrouter onto @tanstack/openai-base (#543)#545

tombeckenham wants to merge 7 commits into

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543-migrate-ai-groq-ai-openrouter-ai-ollama-to-openai-base-+-parameterize-the-base-for-sdk-shape-varianceTanStack/ai:543-migrate-ai-groq-ai-openrouter-ai-ollama-to-openai-base-+-parameterize-the-base-for-sdk-shape-varianceCopy head branch name to clipboard