docs: add arXiv resource link

Add the arXiv abstract page to the compact resource-link row.

README.md

@@ -12,7 +12,7 @@ model_name: HiFi-BRep
 
 Checkpoints for **HiFi-BRep: High-Fidelity Latent Representation for Robust B-Rep Generation**.
 
-[GitHub](https://github.com/1nnoh/HiFi-BRep) · [CVPR 2026](https://openaccess.thecvf.com/content/CVPR2026/papers/Hou_HiFi-BRep_High-Fidelity_Latent_Representation_for_Robust_B-Rep_Generation_CVPR_2026_paper.pdf) · [HuggingFace](https://huggingface.co/1nnoh/HiFi-BRep) · [ModelScope](https://www.modelscope.cn/models/innohou/HiFi-BRep)
+[GitHub](https://github.com/1nnoh/HiFi-BRep) · [CVPR 2026](https://openaccess.thecvf.com/content/CVPR2026/papers/Hou_HiFi-BRep_High-Fidelity_Latent_Representation_for_Robust_B-Rep_Generation_CVPR_2026_paper.pdf) · [arXiv](https://arxiv.org/abs/2608.16485) · [HuggingFace](https://huggingface.co/1nnoh/HiFi-BRep) · [ModelScope](https://www.modelscope.cn/models/innohou/HiFi-BRep)
 
 ## Inference Checkpoints