fix(policy): HuggingFace preset references deprecated api-inference.huggingface.co endpoint

[latenighthackathon]

Description

The HuggingFace preset in nemoclaw-blueprint/policies/presets/huggingface.yaml references api-inference.huggingface.co as the inference endpoint. This host now returns HTTP 410 Gone — HuggingFace has migrated their Inference Providers API to router.huggingface.co.

$ curl -sI https://api-inference.huggingface.co | head -1
HTTP/1.1 410 Gone

$ curl -sI https://router.huggingface.co/v1/models | head -1
HTTP/1.1 200 OK

Sandbox agents using the HuggingFace preset for inference would have their requests routed to a dead endpoint.

Environment

• NemoClaw main branch
• nemoclaw-blueprint/policies/presets/huggingface.yaml