移除多余的 watch，添加地图中英文切换支持

frontend/src/pages/admin/index.vue

@@ -8,7 +8,7 @@ import { useRouter } from 'vue-router'
 import { BasicPage } from '@/components/global-layout'
 import { BASE_URL } from '@/services/api'
 
-const { t } = useI18n()
+const { t, locale } = useI18n()
 const router = useRouter()
 const colorMode = useColorMode()
 const isDark = computed(() => colorMode.value === 'dark')
@@ -522,6 +522,7 @@ function updateMapOption() {
   const maxCount = Math.max(...data.map((d: any) => d.count || 0), 1)
 
   const dark = isDark.value
+  const isZh = locale.value === 'zh' || locale.value.startsWith('zh')
 
   const seriesData = data.map((d: any) => {
     const ratio = d.count / maxCount
@@ -537,7 +538,7 @@ function updateMapOption() {
       b = Math.round(253 + (235 - 253) * ratio)
     }
     return {
-      name: worldNameMap[d.name] || d.name,
+      name: isZh ? (worldNameMap[d.name] || d.name) : d.name,
       value: d.count,
       count: d.count,
       online: d.online || 0,
@@ -591,7 +592,7 @@ function updateMapOption() {
         map: 'world',
         roam: true,
         zoom: 1.2,
-        nameMap: worldNameMap,
+        nameMap: isZh ? worldNameMap : undefined,
         label: {
           show: false,
         },
@@ -750,9 +751,9 @@ watch(isDark, () => {
   updateMapOption()
 })
 
-watch(provinces, () => {
+watch(locale, () => {
   updateMapOption()
-}, { deep: true })
+})
 
 onUnmounted(() => {
   if (chartInstance) {