[diffusion] model: support VDN-H3 with a hybrid_window_attn_h3 backend (#37903)

Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>
Co-authored-by: Haocheng Xi <xihc@berkeley.edu>
Co-authored-by: Mick <mickjagger19@icloud.com>

docs/src/snippets/diffusion/model-catalog.jsx

@@ -190,6 +190,11 @@ export const DiffusionModelCatalog = ({ category }) => {
       ],
       cookbook: "/cookbook/diffusion/MiniMax/MiniMax-H3#6-fasth3-4-step-distilled-preview",
     },
+    {
+      name: "VDN-H3",
+      modelIds: ["OpenVDN/vdn-minimax-h3"],
+      cookbook: "/cookbook/diffusion/MiniMax/MiniMax-H3#7-vdn-h3-hybrid-attention-8-step-distill",
+    },
     {
       name: "MOVA",
       modelIds: ["OpenMOSS-Team/MOVA-360p", "OpenMOSS-Team/MOVA-720p"],