fix: 懒加载chunk失败时自动刷新页面

部署后旧chunk文件名（带hash）被删除，浏览器若缓存了旧index.html
仍会请求旧chunk导致 "Failed to fetch dynamically imported module"。
新增 lazyRetry 包装器，检测到此错误时自动刷新页面获取新index.html。
用 sessionStorage 标记防止无限刷新。

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

frontend/src/App.tsx

@@ -1,4 +1,4 @@
-import { lazy, Suspense, useState, useEffect } from 'react'
+import { Suspense, useState, useEffect } from 'react'
 import { Routes, Route, Navigate } from 'react-router-dom'
 import { Toaster } from 'sonner'
 import { useAuthStore } from './store/authStore'
@@ -11,64 +11,65 @@ import PageContainer from './components/layout/PageContainer'
 import { CommandPalette } from './components/ui/CommandPalette'
 import { SkeletonPage } from './components/ui/Skeleton'
 import ErrorBoundary from './components/ui/ErrorBoundary'
+import { lazyRetry } from './lib/lazyRetry'
 
-const Login = lazy(() => import('./pages/auth/Login'))
-const Register = lazy(() => import('./pages/auth/Register'))
-const ForgotPassword = lazy(() => import('./pages/auth/ForgotPassword'))
-const Dashboard = lazy(() => import('./pages/Dashboard'))
-const Money = lazy(() => import('./pages/Money'))
-const SocialInsurance = lazy(() => import('./pages/SocialInsurance'))
-const Roster = lazy(() => import('./pages/Roster'))
-const OrgChart = lazy(() => import('./pages/OrgChart'))
-const SupportDashboard = lazy(() => import('./pages/support/SupportDashboard'))
-const Termination = lazy(() => import('./pages/Termination'))
-const AIAssistant = lazy(() => import('./pages/AIAssistant'))
-const Settings = lazy(() => import('./pages/Settings'))
-const Evidence = lazy(() => import('./pages/Evidence'))
-const Policies = lazy(() => import('./pages/Policies'))
-const Attendance = lazy(() => import('./pages/Attendance'))
-const Templates = lazy(() => import('./pages/Templates'))
-const AuditLog = lazy(() => import('./pages/AuditLog'))
-const Notifications = lazy(() => import('./pages/Notifications'))
-const PortalLogin = lazy(() => import('./pages/portal/PortalLogin'))
-const Payslip = lazy(() => import('./pages/portal/Payslip'))
-const MyContract = lazy(() => import('./pages/portal/MyContract'))
-const Onboarding = lazy(() => import('./pages/portal/Onboarding'))
-const ContractConfirm = lazy(() => import('./pages/portal/ContractConfirm'))
-const MyPolicies = lazy(() => import('./pages/portal/MyPolicies'))
-const AutoLogin = lazy(() => import('./pages/portal/AutoLogin'))
-const MedicalPeriodCalculator = lazy(() => import('./pages/tools/MedicalPeriodCalculator'))
-const HealthCheck = lazy(() => import('./pages/tools/HealthCheck'))
-const AnnualValueReport = lazy(() => import('./pages/tools/AnnualValueReport'))
-const CalendarPage = lazy(() => import('./pages/Calendar'))
-const MyAttendance = lazy(() => import('./pages/portal/MyAttendance'))
-const MyLeave = lazy(() => import('./pages/portal/MyLeave'))
-const SpecialStatus = lazy(() => import('./pages/SpecialStatus'))
-const CompanyFiles = lazy(() => import('./pages/CompanyFiles'))
-const LeaveApproval = lazy(() => import('./pages/LeaveApproval'))
-const TrainingRecords = lazy(() => import('./pages/roster/TrainingRecords'))
-const PerformanceRecords = lazy(() => import('./pages/roster/PerformanceRecords'))
-const DisciplinaryRecords = lazy(() => import('./pages/roster/DisciplinaryRecords'))
+const Login = lazyRetry(() => import('./pages/auth/Login'))
+const Register = lazyRetry(() => import('./pages/auth/Register'))
+const ForgotPassword = lazyRetry(() => import('./pages/auth/ForgotPassword'))
+const Dashboard = lazyRetry(() => import('./pages/Dashboard'))
+const Money = lazyRetry(() => import('./pages/Money'))
+const SocialInsurance = lazyRetry(() => import('./pages/SocialInsurance'))
+const Roster = lazyRetry(() => import('./pages/Roster'))
+const OrgChart = lazyRetry(() => import('./pages/OrgChart'))
+const SupportDashboard = lazyRetry(() => import('./pages/support/SupportDashboard'))
+const Termination = lazyRetry(() => import('./pages/Termination'))
+const AIAssistant = lazyRetry(() => import('./pages/AIAssistant'))
+const Settings = lazyRetry(() => import('./pages/Settings'))
+const Evidence = lazyRetry(() => import('./pages/Evidence'))
+const Policies = lazyRetry(() => import('./pages/Policies'))
+const Attendance = lazyRetry(() => import('./pages/Attendance'))
+const Templates = lazyRetry(() => import('./pages/Templates'))
+const AuditLog = lazyRetry(() => import('./pages/AuditLog'))
+const Notifications = lazyRetry(() => import('./pages/Notifications'))
+const PortalLogin = lazyRetry(() => import('./pages/portal/PortalLogin'))
+const Payslip = lazyRetry(() => import('./pages/portal/Payslip'))
+const MyContract = lazyRetry(() => import('./pages/portal/MyContract'))
+const Onboarding = lazyRetry(() => import('./pages/portal/Onboarding'))
+const ContractConfirm = lazyRetry(() => import('./pages/portal/ContractConfirm'))
+const MyPolicies = lazyRetry(() => import('./pages/portal/MyPolicies'))
+const AutoLogin = lazyRetry(() => import('./pages/portal/AutoLogin'))
+const MedicalPeriodCalculator = lazyRetry(() => import('./pages/tools/MedicalPeriodCalculator'))
+const HealthCheck = lazyRetry(() => import('./pages/tools/HealthCheck'))
+const AnnualValueReport = lazyRetry(() => import('./pages/tools/AnnualValueReport'))
+const CalendarPage = lazyRetry(() => import('./pages/Calendar'))
+const MyAttendance = lazyRetry(() => import('./pages/portal/MyAttendance'))
+const MyLeave = lazyRetry(() => import('./pages/portal/MyLeave'))
+const SpecialStatus = lazyRetry(() => import('./pages/SpecialStatus'))
+const CompanyFiles = lazyRetry(() => import('./pages/CompanyFiles'))
+const LeaveApproval = lazyRetry(() => import('./pages/LeaveApproval'))
+const TrainingRecords = lazyRetry(() => import('./pages/roster/TrainingRecords'))
+const PerformanceRecords = lazyRetry(() => import('./pages/roster/PerformanceRecords'))
+const DisciplinaryRecords = lazyRetry(() => import('./pages/roster/DisciplinaryRecords'))
 
 // Sprint 4-5 新增页面
-const EmployeeHome = lazy(() => import('./pages/portal/EmployeeHome'))
-const OnboardingProgress = lazy(() => import('./pages/portal/OnboardingProgress'))
-const ResignationApply = lazy(() => import('./pages/portal/ResignationApply'))
-const MyEsign = lazy(() => import('./pages/portal/MyEsign'))
-const MyRecords = lazy(() => import('./pages/portal/MyRecords'))
-const RiskCenter = lazy(() => import('./pages/compliance/RiskCenter'))
-const SalaryDashboard = lazy(() => import('./pages/SalaryDashboard'))
-const CommercialInsurance = lazy(() => import('./pages/CommercialInsurance'))
-const EmployeeBenefits = lazy(() => import('./pages/EmployeeBenefits'))
-const ESign = lazy(() => import('./pages/ESign'))
-const CommissionBonus = lazy(() => import('./pages/CommissionBonus'))
+const EmployeeHome = lazyRetry(() => import('./pages/portal/EmployeeHome'))
+const OnboardingProgress = lazyRetry(() => import('./pages/portal/OnboardingProgress'))
+const ResignationApply = lazyRetry(() => import('./pages/portal/ResignationApply'))
+const MyEsign = lazyRetry(() => import('./pages/portal/MyEsign'))
+const MyRecords = lazyRetry(() => import('./pages/portal/MyRecords'))
+const RiskCenter = lazyRetry(() => import('./pages/compliance/RiskCenter'))
+const SalaryDashboard = lazyRetry(() => import('./pages/SalaryDashboard'))
+const CommercialInsurance = lazyRetry(() => import('./pages/CommercialInsurance'))
+const EmployeeBenefits = lazyRetry(() => import('./pages/EmployeeBenefits'))
+const ESign = lazyRetry(() => import('./pages/ESign'))
+const CommissionBonus = lazyRetry(() => import('./pages/CommissionBonus'))
 
 // 平台管理端
-const PlatformLogin = lazy(() => import('./pages/platform/PlatformLogin'))
-const PlatformDashboard = lazy(() => import('./pages/platform/PlatformDashboard'))
-const PlatformOrgs = lazy(() => import('./pages/platform/PlatformOrgs'))
-const PlatformUsers = lazy(() => import('./pages/platform/PlatformUsers'))
-const PlatformSidebar = lazy(() => import('./components/layout/PlatformSidebar'))
+const PlatformLogin = lazyRetry(() => import('./pages/platform/PlatformLogin'))
+const PlatformDashboard = lazyRetry(() => import('./pages/platform/PlatformDashboard'))
+const PlatformOrgs = lazyRetry(() => import('./pages/platform/PlatformOrgs'))
+const PlatformUsers = lazyRetry(() => import('./pages/platform/PlatformUsers'))
+const PlatformSidebar = lazyRetry(() => import('./components/layout/PlatformSidebar'))
 
 function ProtectedRoute({ children }: { children: React.ReactNode }) {
   const isAuthenticated = useAuthStore((s) => s.isAuthenticated)

frontend/src/lib/lazyRetry.ts

@@ -0,0 +1,42 @@
+import { lazy, ComponentType } from 'react'
+
+/**
+ * 带自动重试的懒加载。
+ *
+ * 部署后旧 chunk 文件名（带 hash）被删除，浏览器若缓存了旧 index.html
+ * 仍会请求旧 chunk 导致 "Failed to fetch dynamically imported module"。
+ * 此时自动刷新页面，让浏览器获取新 index.html 中的新 chunk 引用。
+ */
+export function lazyRetry<T extends ComponentType<any>>(
+  factory: () => Promise<{ default: T } | { [key: string]: T }>,
+): React.LazyExoticComponent<T> {
+  return lazy(async () => {
+    try {
+      const m = await factory()
+      // 统一为 { default: T } 格式
+      if ('default' in m) return { default: m.default }
+      // named export 模式：取第一个导出作为 default
+      const firstKey = Object.keys(m)[0]
+      return { default: m[firstKey] }
+    } catch (err: any) {
+      // 仅对动态导入失败自动刷新，避免其他错误误触发
+      if (
+        err &&
+        (err.message?.includes('Failed to fetch dynamically imported module') ||
+          err.message?.includes('Importing a module script failed') ||
+          err.message?.includes('error loading dynamically imported module'))
+      ) {
+        // 防止无限刷新：用 sessionStorage 标记，仅刷新一次
+        const key = 'lazyRetry:' + (err.message.match(/[\w-]+\.js/)?.[0] || 'unknown')
+        if (!sessionStorage.getItem(key)) {
+          sessionStorage.setItem(key, '1')
+          window.location.reload()
+          // 返回一个永不 resolve 的 Promise，等待页面刷新
+          return new Promise<{ default: T }>(() => {})
+        }
+        sessionStorage.removeItem(key)
+      }
+      throw err
+    }
+  })
+}

frontend/src/pages/AIAssistant.tsx

@@ -1,13 +1,14 @@
-import { useState, lazy, Suspense } from 'react'
+import { useState, Suspense } from 'react'
 import { Bot, FileSearch, Scale, Sparkles, BookOpen, TrendingUp, Loader2 } from 'lucide-react'
 import PageGuide from '../components/ui/PageGuide'
+import { lazyRetry } from '../lib/lazyRetry'
 
-const ChatTab = lazy(() => import('./ai-assistant/ChatTab').then(m => ({ default: m.ChatTab })))
-const PredictTab = lazy(() => import('./ai-assistant/PredictTab').then(m => ({ default: m.PredictTab })))
-const ReviewTab = lazy(() => import('./ai-assistant/ReviewTab').then(m => ({ default: m.ReviewTab })))
-const CaseTab = lazy(() => import('./ai-assistant/CaseTab').then(m => ({ default: m.CaseTab })))
-const KnowledgeTab = lazy(() => import('./ai-assistant/KnowledgeTab').then(m => ({ default: m.KnowledgeTab })))
-const HRReportTab = lazy(() => import('./ai-assistant/HRReportTab').then(m => ({ default: m.HRReportTab })))
+const ChatTab = lazyRetry(() => import('./ai-assistant/ChatTab').then(m => ({ default: m.ChatTab })))
+const PredictTab = lazyRetry(() => import('./ai-assistant/PredictTab').then(m => ({ default: m.PredictTab })))
+const ReviewTab = lazyRetry(() => import('./ai-assistant/ReviewTab').then(m => ({ default: m.ReviewTab })))
+const CaseTab = lazyRetry(() => import('./ai-assistant/CaseTab').then(m => ({ default: m.CaseTab })))
+const KnowledgeTab = lazyRetry(() => import('./ai-assistant/KnowledgeTab').then(m => ({ default: m.KnowledgeTab })))
+const HRReportTab = lazyRetry(() => import('./ai-assistant/HRReportTab').then(m => ({ default: m.HRReportTab })))
 
 type Tab = 'chat' | 'predict' | 'review' | 'case' | 'knowledge' | 'hr-report'
 

frontend/src/pages/Money.tsx

@@ -1,12 +1,13 @@
-import { useState, lazy, Suspense } from 'react'
+import { useState, Suspense } from 'react'
 import { useSearchParams } from 'react-router-dom'
 import { Layers, Wallet, LayoutTemplate, Clock, Receipt, Loader2 } from 'lucide-react'
 import PageGuide from '../components/ui/PageGuide'
+import { lazyRetry } from '../lib/lazyRetry'
 
-const BatchManager = lazy(() => import('./money/BatchTab').then(m => ({ default: m.BatchManager })))
-const TemplateManager = lazy(() => import('./money/TemplateTab').then(m => ({ default: m.TemplateManager })))
-const OvertimeCalculator = lazy(() => import('./money/OvertimeTab').then(m => ({ default: m.OvertimeCalculator })))
-const PayslipManager = lazy(() => import('./money/PayslipTab').then(m => ({ default: m.PayslipManager })))
+const BatchManager = lazyRetry(() => import('./money/BatchTab').then(m => ({ default: m.BatchManager })))
+const TemplateManager = lazyRetry(() => import('./money/TemplateTab').then(m => ({ default: m.TemplateManager })))
+const OvertimeCalculator = lazyRetry(() => import('./money/OvertimeTab').then(m => ({ default: m.OvertimeCalculator })))
+const PayslipManager = lazyRetry(() => import('./money/PayslipTab').then(m => ({ default: m.PayslipManager })))
 
 type Tab = 'batch' | 'template' | 'overtime' | 'payslip'