remove frontend directory from git tracking

frontend/app/layout.tsx

@@ -1,18 +0,0 @@
-import type { Metadata } from "next";
-import "./globals.css";
-import { AgentMount } from "@/components/agent-mount";
-
-export const metadata: Metadata = {
-  title: "华夏基金",
-  description: "华夏基金 PC 网页平台",
-};
-
-export default function RootLayout({
-  children,
-}: Readonly<{ children: React.ReactNode }>) {
-  return (
-    <html lang="zh-CN">
-      <body>{children}<AgentMount /></body>
-    </html>
-  );
-}