Add support for NVIDIA's API (https://integrate.api.nvidia.com/v1) with three models:
- nvidia/llama-3.1-nemotron-70b-instruct (default)
- nvidia/llama-3.3-70b-instruct
- nvidia/mistral-nemo-minitron-8b-8k-instruct
Users can configure via NVIDIA_API_KEY environment variable or auth profiles.
Co-authored-by: thesomewhatyou <162917831+thesomewhatyou@users.noreply.github.com>
