fix: merge后14个测试修复+前端TS编译修复 - 895/895通过+前端零错误

frontend/src/pages/UsersPage.tsx

@@ -2,10 +2,10 @@ import { useState, useEffect, useCallback, useMemo } from 'react';
 import {
   Plus, Search, Edit2, Trash2, XCircle, Eye, Download, Upload,
   CheckSquare, Square, X, RotateCcw, KeyRound, ChevronDown,
-  UserCheck, UserX, Filter, MoreHorizontal, Lock,
+  UserCheck, UserX, Filter,
 } from 'lucide-react';
 import { Card, CardContent } from '@/components/ui/card';
-import { roles, users as mockUsers } from '@/lib/mock';
+import { users as mockUsers } from '@/lib/mock';
 import { userApi } from '@/api/user';
 
 /* ───────── Types ───────── */