[Partner Nodes] Tencent3D update

[bigcat88]

1. Allow smaller possible face_count in the 3D model generation
2. Add uv_image output to the TencentModelTo3DUVNode node

API Node PR Checklist

Scope

• Is API Node Change

Pricing & Billing

• Need pricing update
• No pricing update

If Need pricing update:

• Metronome rate cards updated
• Auto‑billing tests updated and passing

QA

• QA done
• QA not required

Comms

• Informed Kosinkadink

[coderabbitai]

📝 Walkthrough

Walkthrough

This pull request modifies comfy_api_nodes/nodes_hunyuan3d.py to adjust model constraints and enhance the UV mapping node. The minimum face_count constraint for two Tencent nodes is lowered from 40000 to 3000. TencentModelTo3DUVNode is extended with a new uv_image output that retrieves and processes UV image data from the model generation result, or returns a zero tensor if the data is absent.

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title '[Partner Nodes] Tencent3D update' is directly related to the changeset, which updates the Tencent 3D model generation nodes with specific improvements to face_count constraints and new uv_image output.
Description check	✅ Passed	The pull request description clearly relates to the changeset, describing both the face_count constraint reduction and the new uv_image output addition.

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