feat: 设置页数据导出新增问卷结果分析导出，生成MD文档

frontend/src/pages/Settings.tsx

@@ -1,13 +1,14 @@
 import { useState, useEffect } from 'react'
 import { toast } from 'sonner'
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query'
-import { Building2, Users, CreditCard, Plus, Bell, Download, Upload, FileSpreadsheet, Clock, CheckCircle, AlertCircle } from 'lucide-react'
+import { Building2, Users, CreditCard, Plus, Bell, Download, Upload, FileSpreadsheet, Clock, CheckCircle, AlertCircle, ClipboardList } from 'lucide-react'
 import api from '../lib/api'
 import { useAuthStore } from '../store/authStore'
 import Card from '../components/ui/Card'
 import Button from '../components/ui/Button'
 import { Input, Label, Select } from '../components/ui/Input'
 import Modal from '../components/ui/Modal'
+import { surveyPages, totalFeatures } from '../data/surveyData'
 
 export default function Settings() {
   const queryClient = useQueryClient()
@@ -527,10 +528,129 @@ function ExportSettings() {
       <Button variant="secondary" size="sm" onClick={handleExport} disabled={exporting}>
         <Download className="w-4 h-4 mr-1" />{exporting ? '导出中...' : '导出选中数据'}
       </Button>
+
+      {/* 问卷结果分析导出 */}
+      <div className="border-t border-gray-200 pt-3 mt-3">
+        <div className="flex items-center gap-2 mb-2">
+          <ClipboardList className="w-4 h-4 text-primary" />
+          <h3 className="text-sm font-medium">问卷结果分析导出</h3>
+        </div>
+        <p className="text-xs text-gray-500 mb-2">将功能调查问卷的填写结果导出为 Markdown 文档，包含每项功能的评分、有用性和备注</p>
+        <Button variant="secondary" size="sm" onClick={handleSurveyExport}>
+          <Download className="w-4 h-4 mr-1" />导出问卷结果（MD）
+        </Button>
+      </div>
     </div>
   )
 }
 
+/** 导出问卷结果为 Markdown 文档 */
+function handleSurveyExport() {
+  try {
+    const raw = localStorage.getItem('survey-results')
+    if (!raw) {
+      toast.info('暂无已提交的问卷结果，请先在功能调查问卷中提交')
+      return
+    }
+    const data = JSON.parse(raw)
+    const items: Array<{ featureId: string; score: number; useful: string; remark: string }> = data.items || []
+    if (items.length === 0) {
+      toast.info('问卷结果为空')
+      return
+    }
+
+    const scoreMap = new Map(items.map(i => [i.featureId, i]))
+    const usefulLabels: Record<string, string> = { yes: '有用', no: '无用', maybe: '待定', '': '' }
+    const submittedAt = data.submittedAt ? new Date(data.submittedAt).toLocaleString('zh-CN') : ''
+
+    let md = `# 功能调查问卷结果分析\n\n`
+    md += `> **导出时间：** ${new Date().toLocaleString('zh-CN')}\n`
+    if (submittedAt) md += `> **提交时间：** ${submittedAt}\n`
+    md += `> **总功能数：** ${totalFeatures}\n`
+    md += `> **已评功能数：** ${items.length}\n\n`
+
+    const rated = items.filter(i => i.score > 0)
+    const avgScore = rated.length > 0 ? (rated.reduce((s, i) => s + i.score, 0) / rated.length).toFixed(2) : '0'
+    const usefulCount = items.filter(i => i.useful === 'yes').length
+    const notUsefulCount = items.filter(i => i.useful === 'no').length
+    const maybeCount = items.filter(i => i.useful === 'maybe').length
+
+    md += `## 统计概览\n\n`
+    md += `| 指标 | 数值 |\n|------|------|\n`
+    md += `| 已评功能数 | ${items.length} / ${totalFeatures} |\n`
+    md += `| 平均评分 | ${avgScore} / 5 |\n`
+    md += `| 标记有用 | ${usefulCount} |\n`
+    md += `| 标记无用 | ${notUsefulCount} |\n`
+    md += `| 标记待定 | ${maybeCount} |\n\n`
+
+    md += `## 评分分布\n\n`
+    for (let s = 5; s >= 1; s--) {
+      const count = rated.filter(i => i.score === s).length
+      const pct = rated.length > 0 ? ((count / rated.length) * 100).toFixed(1) : '0'
+      md += `- **${s}星**：${count} 项（${pct}%）\n`
+    }
+    md += `\n`
+
+    md += `## 详细评分\n\n`
+
+    for (const page of surveyPages) {
+      const pageItems = page.features.filter(f => scoreMap.has(f.id))
+      if (pageItems.length === 0) continue
+
+      md += `### ${page.id}. ${page.name}\n\n`
+      md += `> 📍 ${page.menu}`
+      if (page.tab) md += ` | Tab: ${page.tab}`
+      md += `\n\n`
+
+      md += `| # | 功能 | 评分 | 有用性 | 备注 |\n`
+      md += `|---|------|:----:|:------:|------|\n`
+      for (const f of pageItems) {
+        const s = scoreMap.get(f.id)!
+        const stars = '★'.repeat(s.score) + '☆'.repeat(5 - s.score)
+        md += `| ${f.id} | ${f.name} | ${stars} (${s.score}) | ${usefulLabels[s.useful] || ''} | ${s.remark || ''} |\n`
+      }
+      md += `\n`
+    }
+
+    md += `## 低分功能（≤2分）\n\n`
+    const lowScore = rated.filter(i => i.score <= 2).sort((a, b) => a.score - b.score)
+    if (lowScore.length > 0) {
+      md += `| # | 功能 | 评分 | 备注 |\n|---|------|:----:|------|\n`
+      for (const item of lowScore) {
+        const feat = surveyPages.flatMap(p => p.features).find(f => f.id === item.featureId)
+        md += `| ${item.featureId} | ${feat?.name || item.featureId} | ${item.score} | ${item.remark || ''} |\n`
+      }
+    } else {
+      md += `无低分功能\n`
+    }
+    md += `\n`
+
+    md += `## 高分功能（≥4分）\n\n`
+    const highScore = rated.filter(i => i.score >= 4).sort((a, b) => b.score - a.score)
+    if (highScore.length > 0) {
+      md += `| # | 功能 | 评分 | 备注 |\n|---|------|:----:|------|\n`
+      for (const item of highScore) {
+        const feat = surveyPages.flatMap(p => p.features).find(f => f.id === item.featureId)
+        md += `| ${item.featureId} | ${feat?.name || item.featureId} | ${item.score} | ${item.remark || ''} |\n`
+      }
+    } else {
+      md += `无高分功能\n`
+    }
+    md += `\n---\n*由企业用工专家系统自动生成*\n`
+
+    const blob = new Blob([md], { type: 'text/markdown;charset=utf-8' })
+    const url = URL.createObjectURL(blob)
+    const a = document.createElement('a')
+    a.href = url
+    a.download = `survey-results-${new Date().toISOString().slice(0, 10)}.md`
+    a.click()
+    URL.revokeObjectURL(url)
+    toast.success('问卷结果已导出为 Markdown 文档')
+  } catch {
+    toast.error('导出问卷结果失败')
+  }
+}
+
 function PlanSettings({ orgData }: { orgData: any }) {
   const queryClient = useQueryClient()
   const plan = orgData?.plan || 'FREE'