- Add MiniMax chat model provider using OpenAI-compatible API
- Support MiniMax-M2.7 and MiniMax-M2.7-highspeed models
- Temperature clamping to MiniMax valid range (0.0, 1.0]
- Streaming support with token usage tracking
- MINIMAX_API_KEY environment variable support
- Add text-completion-minimax entry point
- Add 15 unit tests and 3 integration tests
- Update README with MiniMax in LLM APIs list