fix: render issues

src/components/md-token.tsx

@@ -10,6 +10,7 @@ import {
 import { resolvePath } from "./utils/path";
 import { traceImage, type TracedLayer } from "./utils/image-tracer";
 import { generateSTL, type ExtrusionSettings } from "./utils/stl-generator";
+import MdTokenViewer from "./md-token-viewer";
 
 export interface TokenProps {
   size?: number; // 模型整体尺寸 (mm), 默认 50
@@ -182,7 +183,7 @@ customElement("md-token", { size: 50, defaultThickness: 2 }, (props, { element }
                 <h4 class="text-sm font-semibold mb-2 text-gray-700">
                   3D 模型预览
                 </h4>
-                <md-token-viewer stl-url={stlUrl()!} />
+                <MdTokenViewer stlUrl={stlUrl()}/>
               </div>
             </Show>
           </div>