feat: 新增验收测试清单(199项24域)替代功能调查问卷; 修复工作台评分环文字重叠

- 新增 acceptance-test.html 交互式验收测试页面(验收人姓名/自动补全/自动统计/CSV+Excel下载)
- 新增 AcceptanceTestModal 组件, TopNav 中用验收测试弹窗替代 SurveyModal
- Settings 页问卷导出替换为验收测试结果导出(支持多验收人汇总MD)
- 修复 Dashboard 合规健康度评分环文字重叠: 圆环增大至w-32, 加overflow-hidden+truncate

frontend/src/components/layout/TopNav.tsx

@@ -7,7 +7,7 @@ import { dashboardApi } from '../../lib/api-services'
 import Breadcrumb from './Breadcrumb'
 import HelpModal from '../HelpModal'
 import PortalQRModal from '../PortalQRModal'
-import SurveyModal from '../SurveyModal'
+import AcceptanceTestModal from '../AcceptanceTestModal'
 
 export default function TopNav({ onMenuClick }: { onMenuClick?: () => void }) {
   const navigate = useNavigate()
@@ -15,7 +15,7 @@ export default function TopNav({ onMenuClick }: { onMenuClick?: () => void }) {
   const [menuOpen, setMenuOpen] = useState(false)
   const [helpOpen, setHelpOpen] = useState(false)
   const [portalQROpen, setPortalQROpen] = useState(false)
-  const [surveyOpen, setSurveyOpen] = useState(false)
+  const [acceptanceOpen, setAcceptanceOpen] = useState(false)
 
   const { data: dashboardData } = useQuery<any>({
     queryKey: ['dashboard'],
@@ -58,13 +58,13 @@ export default function TopNav({ onMenuClick }: { onMenuClick?: () => void }) {
           </button>
           <HelpModal open={helpOpen} onClose={() => setHelpOpen(false)} />
           <button
-            onClick={() => setSurveyOpen(true)}
+            onClick={() => setAcceptanceOpen(true)}
             className="p-1.5 rounded-md hover:bg-gray-100"
-            aria-label="功能调查"
+            aria-label="验收测试"
           >
             <ClipboardList className="w-4 h-4 text-gray-600" />
           </button>
-          <SurveyModal open={surveyOpen} onClose={() => setSurveyOpen(false)} />
+          <AcceptanceTestModal open={acceptanceOpen} onClose={() => setAcceptanceOpen(false)} />
           <Link to="/settings" className="p-1.5 rounded-md hover:bg-gray-100" aria-label="设置">
             <SettingsIcon className="w-4 h-4 text-gray-600" />
           </Link>