edaa9a9c50
Adds model_name kimi-k3 → openai/kimi-k3 @ https://api.moonshot.ai/v1 (OpenAI-compatible), keyed by MOONSHOT_API_KEY (compose env + .env.example placeholder; real key on server only). Verified live through the gateway. Two Moonshot constraints captured in the config comment + pinned: K3 accepts ONLY temperature=1 (else 400), and it is a reasoning model (CoT in reasoning_content, answer in content — needs adequate max_tokens or content returns empty). Model id confirmed via /v1/models.