✨ 优化 2026 前端无障碍与响应式体验

完善 2026 主题的移动端与桌面端交互体验，修复多项可访问性和信息展示问题。

- 允许浏览器缩放，补充焦点样式、按钮名称、表单标签和对话框键盘焦点管理\n- 支持 reduced-motion，扩大公共页、后台导航、记录列表和分页控件的触控区域\n- 优化系统设置分区导航、密码显示、字段语义和底部粘性保存栏\n- 压缩移动文件列表操作区，改善桌面表格滚动可达性和统计值截断\n- 优化仪表盘指标、趋势摘要、进度条语义及中英文文案

src/composables/useDashboardStats.ts

@@ -1,4 +1,5 @@
 import { computed, ref, reactive } from 'vue'
+import { useI18n } from 'vue-i18n'
 import { StatsService } from '@/services'
 import type { DashboardData, DashboardHealthSummary, DashboardViewData } from '@/types'
 import { formatFileSize, getErrorMessage } from '@/utils/common'
@@ -54,12 +55,12 @@ const clampRatio = (value: number) => Math.max(0, Math.min(100, Math.round(value
 
 const hasOwn = (target: object, key: string) => Object.prototype.hasOwnProperty.call(target, key)
 
-const formatDuration = (startTimestamp: number | null) => {
+const formatDuration = (startTimestamp: number | null, dayLabel: string, hourLabel: string) => {
   if (!startTimestamp) return '-'
   const uptime = Date.now() - startTimestamp
   const days = Math.floor(uptime / (24 * 60 * 60 * 1000))
   const hours = Math.floor((uptime % (24 * 60 * 60 * 1000)) / (60 * 60 * 1000))
-  return `${days}天${hours}小时`
+  return `${days}${dayLabel} ${hours}${hourLabel}`
 }
 
 const healthSummaryKeys: (keyof DashboardHealthSummary)[] = [
@@ -91,12 +92,15 @@ const normalizeHealthSummary = (detail: DashboardData): DashboardHealthSummary =
 })
 
 export function useDashboardStats(options: UseDashboardStatsOptions = {}) {
+  const { t, locale } = useI18n()
   const dashboardData = reactive<DashboardViewData>(emptyDashboardData())
   const isLoading = ref(false)
   const errorMessage = ref('')
   const lastUpdatedAt = ref<Date | null>(null)
   const lastUpdatedText = computed(() =>
-    lastUpdatedAt.value ? lastUpdatedAt.value.toLocaleString() : '-'
+    lastUpdatedAt.value
+      ? new Intl.DateTimeFormat(locale.value, { dateStyle: 'medium', timeStyle: 'short' }).format(lastUpdatedAt.value)
+      : '-'
   )
 
   const fetchDashboardData = async () => {
@@ -140,7 +144,11 @@ export function useDashboardStats(options: UseDashboardStatsOptions = {}) {
       dashboardData.yesterdaySizeText = formatFileSize(dashboardData.yesterdaySize)
       dashboardData.todaySizeText = formatFileSize(dashboardData.todaySize)
       dashboardData.uploadSizeLimitText = formatFileSize(dashboardData.uploadSizeLimit)
-      dashboardData.sysUptimeText = formatDuration(dashboardData.sysUptime)
+      dashboardData.sysUptimeText = formatDuration(
+        dashboardData.sysUptime,
+        t('common.dayShort'),
+        t('common.hourShort')
+      )
       dashboardData.activeRatio = dashboardData.totalFiles
         ? clampRatio((dashboardData.activeCount / dashboardData.totalFiles) * 100)
         : 0