fix: strip <human in RedPajama responses

Author: Neet-Nestor

app/client/webllm.ts

@@ -16,6 +16,7 @@ import {
 
 import { ChatOptions, LLMApi, LLMConfig, RequestMessage } from "./api";
 import { LogLevel } from "@mlc-ai/web-llm";
+import { fixMessage } from "../utils";
 
 const KEEP_ALIVE_INTERVAL = 5_000;
 
@@ -144,6 +145,7 @@ export class WebLLMApi implements LLMApi {
     }
 
     if (reply) {
+      reply = fixMessage(reply);
       options.onFinish(reply, stopReason, usage);
     } else {
       options.onError?.(new Error("Empty response generated by LLM"));