[Feature]: Support Custom Hugging Face Endpoints via HF_ENDPOINT

[pipe1os]

Problem Description

The src/modelinfo/parsers/huggingface.py file currently hardcodes the URL https://huggingface.co/ across multiple functions. Many developers in enterprise environments or specific regions use proxy servers or Hugging Face mirrors (like hf-mirror.com).

Proposed Solution

1. Read the HF_ENDPOINT environment variable.
2. Fallback to https://huggingface.co if it's not set.
3. Replace the hardcoded base URLs in the parser functions to use the dynamically resolved endpoint.

Alternatives Considered

No response

Additional Context

This is a great issue for anyone looking to contribute to the project!