feat:前端修改

frontend/app/tools/nl2sql/page.tsx

@@ -4,6 +4,7 @@ import Link from "next/link";
 import { ArrowLeft, Download, RefreshCw, Send } from "lucide-react";
 import { FormEvent, useEffect, useState } from "react";
 import { ApiError, apiFetch } from "@/lib/api";
+import { USER_TYPE } from "@/lib/roles";
 
 interface HistoryItem { query_id?: string; question?: string; status?: string; row_count?: number; create_time?: string; }
 
@@ -16,15 +17,15 @@ export default function Nl2SqlPage() {
   const [message, setMessage] = useState("");
   const [loading, setLoading] = useState(false);
   const [userType, setUserType] = useState<string | null>(null);
-  const isAdmin = userType === "ADMIN";
-  const canQuery = userType === "EMPLOYEE";
+  const isAdmin = userType === USER_TYPE.ADMIN;
+  const canQuery = userType === USER_TYPE.EMPLOYEE || userType === USER_TYPE.ADMIN;
 
   useEffect(() => {
     void apiFetch<{ user: { user_type?: string } }>("/auth/me")
       .then(({ user }) => {
         const nextType = user.user_type ?? null;
         setUserType(nextType);
-        if (nextType === "ADMIN") setTab("config");
+        if (nextType === USER_TYPE.ADMIN) setTab("config");
       })
       .catch(() => setUserType(null));
   }, []);