fix: allow basis transcoder assets for 3d textures

proxy.ts

@@ -72,6 +72,13 @@ export async function proxy(request: NextRequest) {
     return NextResponse.next();
   }
 
+  // three.js KTX2/Basis transcoder assets are public runtime dependencies used
+  // by the in-browser 3D viewer. Redirecting them to login breaks texture decode
+  // and leaves generated 3D models as white clay renders.
+  if (pathname.startsWith("/three/basis/")) {
+    return NextResponse.next();
+  }
+
   // 🛡️ 安全检查3：速率限制
   // 对API路径应用速率限制
   if (pathname === "/api/chat") {
@@ -299,6 +306,6 @@ export const config = {
      * - favicon.ico (favicon文件)
      * - public 文件夹中的文件
      */
-    "/((?!api/auth|_next/static|_next/image|favicon.ico|.*\\.(?:svg|png|jpg|jpeg|gif|webp)$).*)",
+    "/((?!api/auth|_next/static|_next/image|favicon.ico|.*\\.(?:svg|png|jpg|jpeg|gif|webp|js|wasm)$).*)",
   ],
 };