remove frontend directory from git tracking

frontend/components/agent-mount.tsx

@@ -1,30 +0,0 @@
-"use client";
-
-import { usePathname } from "next/navigation";
-import { useEffect, useState } from "react";
-import { apiFetch } from "@/lib/api";
-import { AgentChat } from "@/components/agent-chat";
-
-interface CurrentUser {
-  user_type?: string;
-  employee_role?: string | null;
-}
-
-export function AgentMount() {
-  const pathname = usePathname();
-  const [employee, setEmployee] = useState(false);
-
-  useEffect(() => {
-    if (!pathname.startsWith("/admin")) return;
-    void apiFetch<{ user: CurrentUser }>("/auth/me")
-      .then(({ user }) => {
-        const advisorRole = user.employee_role === "投顾" || user.employee_role === "投顾专员" || user.employee_role === "ADMIN";
-        setEmployee((user.user_type === "EMPLOYEE" || user.user_type === "ADMIN") && advisorRole);
-      })
-      .catch(() => setEmployee(false));
-  }, [pathname]);
-
-  if (pathname.startsWith("/admin") && employee) return <AgentChat employeeMode />;
-  if (pathname.startsWith("/admin")) return null;
-  return <AgentChat />;
-}