docs: 在README中新增项目运行截图

frontend/src/app/layout.tsx

@@ -3,7 +3,7 @@ import "./globals.css";
 
 export const metadata: Metadata = {
   title: "Agent-Draw-IO",
-  description: "智能体交互绘图 @小傅哥",
+  description: "智能体交互绘图 @peakxy",
 };
 
 import Script from "next/script";

frontend/src/app/login/page.tsx

@@ -67,7 +67,7 @@ export default function Login() {
             </div>
             <div className="flex flex-col gap-1">
               <strong className="text-base leading-[1.1] tracking-[0.2px] text-[rgba(255,255,255,0.92)]">
-                AI 智能体工作台 By Ai Agent Scaffold - @小傅哥
+                AI 智能体工作台 By Ai Agent Scaffold - @peakxy
               </strong>
               <span className="text-xs text-[rgba(255,255,255,0.56)]">更快搭建 · 更稳运行 · 更易运维</span>
             </div>

frontend/src/app/page.tsx

@@ -599,7 +599,7 @@ export default function Home() {
                <polyline points="21 15 16 10 5 21"></polyline>
             </svg>
           </div>
-          <h1 className="text-lg font-bold text-slate-800 tracking-tight">ai + draw.io <span className="text-slate-400 font-normal text-sm ml-2">@小傅哥</span></h1>
+          <h1 className="text-lg font-bold text-slate-800 tracking-tight">ai + draw.io <span className="text-slate-400 font-normal text-sm ml-2">@peakxy</span></h1>
         </div>
         
         <div className="flex items-center gap-3">