Clarify Hugging Face endpoint container arguments

[Weili Shi (shi-weili)]

Related Issue

N/A

Summary

Clarifies the Hugging Face Inference Endpoints setup by documenting the exact vLLM arguments to enter for each supported model.

Changes

• Explain that Advanced Configuration provides a single Container Arguments text field.
• List the complete Fara and MagenticBrain argument strings.
• Leave the self-hosted vLLM commands unchanged.

How to Verify

1. Open docs/model-hosting-guide.md.
2. Confirm Option A lists the complete Container Arguments string for both Fara and MagenticBrain.
3. Confirm the Option B self-hosted vLLM commands are unchanged.

Checklist

• Tests added or updated (if applicable)
• Documentation updated (if needed)
• Verified using the steps above

[Weili Shi (shi-weili)]

Replaced by #561 after renaming the head branch to docs/hf-container-arguments.