refine Semi UI mobile history workspace

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

@@ -355,7 +355,11 @@ export default function HistoryPage() {
             <strong>显示字段</strong>
             <small>{visibleMetrics.length} / {allMetrics.length}</small>
           </div>
-          <div className="v2-history-metric-scroll" aria-label="当前显示字段">
+          <div
+            className="v2-history-metric-scroll"
+            tabIndex={mobileLayout ? 0 : undefined}
+            aria-label={mobileLayout ? '当前显示字段，可左右滑动' : '当前显示字段'}
+          >
             {visibleMetrics.map((metric) => <Tag className="v2-history-metric-tag" color="blue" type="light" size="large" closable tabIndex={0} aria-label={`已选字段 ${metric.label}${metric.unit ? ` ${metric.unit}` : ''}，点击取消显示`} onClick={() => toggleMetric(metric.key)} onKeyDown={(event) => { if (event.key === 'Enter' || event.key === ' ') { event.preventDefault(); toggleMetric(metric.key); } }} onClose={(_, event) => { event.stopPropagation(); toggleMetric(metric.key); }} key={metric.key}>{metric.label}{metric.unit ? ` (${metric.unit})` : ''}</Tag>)}
             {allMetrics.length > visibleMetrics.length ? <span>另有 {allMetrics.length - visibleMetrics.length} 项可选</span> : !allMetrics.length ? <span>查询后加载可用指标</span> : null}
           </div>
@@ -378,7 +382,7 @@ export default function HistoryPage() {
             title="历史明细"
             description={keywords.length ? `${(result?.total ?? 0).toLocaleString('zh-CN')} 条记录 · ${resultSummary?.vehicleCount ?? 0} 辆车辆 · ${summarySources}` : '选择车辆和时间范围后查询'}
             meta={resultSummary ? `${resultSummary.queryDurationMs} ms` : undefined}
-            actionsClassName="v2-history-result-actions"
+            actionsClassName={`v2-history-result-actions${mobileLayout ? ' is-mobile-actions' : ''}`}
             actions={<>
               <Button className={`v2-history-table-trend${trendExpanded ? ' is-expanded' : ''}`} theme="borderless" aria-label={trendExpanded ? '收起趋势' : '展开趋势'} aria-expanded={trendExpanded} icon={<IconChevronRight />} onClick={() => setTrendExpanded((value) => !value)}>{trendExpanded ? '收起趋势' : '聚合趋势'}</Button>
               <Button theme="borderless" aria-label="列设置" aria-haspopup="dialog" aria-expanded={columnSettingsOpen} aria-controls="v2-history-column-settings" icon={<IconSetting />} onClick={() => setColumnSettingsOpen((value) => !value)}>列设置</Button>