feat(web): unify semantic empty states

vehicle-data-platform/apps/web/src/v2/pages/VehicleSearchWorkspace.tsx

@@ -1,6 +1,6 @@
 import { useQuery } from '@tanstack/react-query';
 import { IconArrowRight, IconBox, IconChevronRight, IconRefresh, IconSearch } from '@douyinfe/semi-icons';
-import { Button, Card, Empty, Input, Table, Tag } from '@douyinfe/semi-ui';
+import { Button, Card, Input, Table, Tag } from '@douyinfe/semi-ui';
 import { type FormEvent, lazy, Suspense, useDeferredValue, useEffect, useMemo, useRef, useState } from 'react';
 import { useNavigate } from 'react-router-dom';
 import { api } from '../../api/client';
@@ -10,6 +10,7 @@ import { canAdminister } from '../auth/session';
 import { formatZhNumber } from '../domain/formatters';
 import { useMobileLayout } from '../hooks/useMobileLayout';
 import { QUERY_MEMORY, queryScopeKey, retainPreviousPageWithinScope } from '../queryPolicy';
+import { PanelEmpty } from '../shared/AsyncState';
 import { MobileFilterToggle } from '../shared/MobileFilterToggle';
 import { MobileFilterSheet, MobileFilterSheetSection } from '../shared/MobileFilterSheet';
 import { ProtocolTag } from '../shared/ProtocolTag';
@@ -405,7 +406,16 @@ export default function VehicleSearchWorkspace() {
               loading={candidates.isFetching}
               empty={null}
             />
-            : <Empty className="v2-vehicle-recent-empty" title={deferredKeyword ? '没有匹配车辆' : '暂无授权车辆'} description={deferredKeyword ? '调整车牌、VIN 或手机号后重试。' : '管理员分配车辆权限后会显示在这里。'} />}
+            : <PanelEmpty
+                className="v2-vehicle-recent-empty"
+                tone="primary"
+                icon={<IconSearch />}
+                title={deferredKeyword ? '没有匹配车辆' : '暂无授权车辆'}
+                description={deferredKeyword ? '当前范围没有结果，可清除搜索返回完整车辆目录。' : '管理员分配车辆权限后会显示在这里。'}
+                action={deferredKeyword
+                  ? <Button theme="light" type="primary" icon={<IconRefresh />} onClick={() => { setKeyword(''); setDraftKeyword(''); setPage(1); setCandidatesOpen(false); }}>清除搜索</Button>
+                  : <Button theme="light" type="primary" icon={<IconRefresh />} loading={candidates.isFetching} onClick={() => candidates.refetch()}>刷新车辆目录</Button>}
+              />}
       {total > 0 ? <footer className="v2-vehicle-directory-pagination"><TablePagination page={page} totalPages={totalPages} info={`共 ${total.toLocaleString('zh-CN')} 辆 · 本页 ${pageVehicles.length.toLocaleString('zh-CN')} 辆`} disabled={candidates.isFetching} onPageChange={(next) => { setPage(next); setCandidatesOpen(false); }} /></footer> : null}
     </Card>
     {syncOpen ? <Suspense fallback={<Card className="v2-profile-sync-panel v2-profile-sync-loading" bodyStyle={{ padding: 0 }}><span role="status"><span className="v2-spinner" />正在加载主档同步工具…</span></Card>}><VehicleProfileSyncPanel onClose={() => setSyncOpen(false)} /></Suspense> : null}