Hugging Face CLI renamed to hf with streamlined command structure

AI Impact Summary

Hugging Face has officially renamed the CLI from huggingface-cli to hf and reorganized commands under a consistent hf <resource> <action> pattern. This improves ergonomics and discoverability, but automation and scripts that still call huggingface-cli will need to be updated to use the new hf equivalents (e.g., hf auth login, hf jobs). The legacy huggingface_cli remains active to ease migration, but will emit warnings directing users to the new CLI, potentially creating noise in automation logs during transition.