new-provider

Add a new LLM provider to hermesllm. The user will provide the provider name as $ARGUMENTS.

1. Add a new variant to ProviderId enum in crates/hermesllm/src/providers/id.rs
2. Implement string parsing in the TryFrom<&str> impl for the new provider
3. If the provider uses a non-OpenAI API format, create request/response types in crates/hermesllm/src/apis/
4. Add variant to ProviderRequestType and ProviderResponseType enums and update all match arms
5. Add model list to crates/hermesllm/src/providers/provider_models.yaml
6. Update SupportedUpstreamAPIs mapping if needed

After making changes, run cd crates && cargo test --lib to verify everything compiles and tests pass.