feat: Sprint 1 — 设计Token系统 + 新导航5分组 + AppShell/PageHeader/FilterBar/DataTable组件 + 花名册导出扩充19字段 + 社保/公积金不缴纳选项 + 个税申报表导出 + 入离职/绩效统计看板

frontend/src/pages/Dashboard.tsx

@@ -11,6 +11,8 @@ import Button from '../components/ui/Button'
 import EmptyState from '../components/ui/EmptyState'
 import Pagination from '../components/ui/Pagination'
 import type { DashboardData } from '../types'
+import TurnoverStats from './dashboard/TurnoverStats'
+import PerformanceStats from './dashboard/PerformanceStats'
 
 function fmt(n: number) {
   return `¥${(n || 0).toLocaleString('zh-CN', { minimumFractionDigits: 2, maximumFractionDigits: 2 })}`
@@ -679,6 +681,12 @@ export default function Dashboard() {
               )}
             </Card>
           </div>
+
+          {/* 入离职统计 + 绩效统计 */}
+          <div className="grid grid-cols-1 lg:grid-cols-2 gap-3 mt-3">
+            <TurnoverStats />
+            <PerformanceStats />
+          </div>
         </div>
       )}