修复聊天消息加载占位的网关错误展示

components/canvas/CanvasChatPanel.tsx

@@ -66,6 +66,7 @@ import {
 import { toast } from "sonner";
 import { useCanvasStore } from "@/store/canvas";
 import { cn } from "@/lib/utils";
+import { getGatewayErrorPageMessage } from "@/lib/request-error";
 import { fetcher, fetchWithErrorHandlers, generateUUID } from "@/lib/utils";
 import {
   fetchUploadWithRetry,
@@ -373,7 +374,9 @@ function MarkdownResponseFallback({
 }: Pick<ResponseProps, "children" | "className">) {
   return (
     <div className={cn("whitespace-pre-wrap break-words [overflow-wrap:anywhere]", className)}>
-      {children}
+      {typeof children === "string"
+        ? getGatewayErrorPageMessage(children) || children
+        : children}
     </div>
   );
 }