feat: 基础本地化支持与通用键补充（useConfirm/useChartConfig/format/apiStats 回退 + common.time/errors 等 i18n 键）

web/admin-spa/src/composables/useChartConfig.js

@@ -1,4 +1,5 @@
 import { Chart } from 'chart.js/auto'
+import i18n from '@/i18n'
 
 export function useChartConfig() {
   // 设置Chart.js默认配置
@@ -51,7 +52,9 @@ export function useChartConfig() {
               label += ': '
             }
             if (context.parsed.y !== null) {
-              label += new Intl.NumberFormat('zh-CN').format(context.parsed.y)
+              const localeMap = { 'zh-cn': 'zh-CN', 'zh-tw': 'zh-TW', en: 'en-US' }
+              const currentLocale = localeMap[i18n.global.locale.value] || 'en-US'
+              label += new Intl.NumberFormat(currentLocale).format(context.parsed.y)
             }
             return label
           }

web/admin-spa/src/composables/useConfirm.js

@@ -1,16 +1,22 @@
 import { ref } from 'vue'
+import i18n from '@/i18n'
 
 const showConfirmModal = ref(false)
 const confirmOptions = ref({
   title: '',
   message: '',
-  confirmText: '继续',
-  cancelText: '取消'
+  confirmText: i18n.global.t('common.confirmModal.continue'),
+  cancelText: i18n.global.t('common.confirmModal.cancel')
 })
 const confirmResolve = ref(null)
 
 export function useConfirm() {
-  const showConfirm = (title, message, confirmText = '继续', cancelText = '取消') => {
+  const showConfirm = (
+    title,
+    message,
+    confirmText = i18n.global.t('common.confirmModal.continue'),
+    cancelText = i18n.global.t('common.confirmModal.cancel')
+  ) => {
     return new Promise((resolve) => {
       confirmOptions.value = {
         title,