feat(admin,player,api): 优胜冠军通用管理与界面精简

管理端新增冠军盘列表/编辑、展开懒加载与 ECharts 修复；各列表页去掉重复标题。玩家端支持多赛事冠军盘、分批加载与语言切换刷新。API 扩展 outright CRUD 与列表性能优化。

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/player/src/layouts/MainLayout.vue

@@ -10,10 +10,10 @@ import LocaleSwitcher from '../components/LocaleSwitcher.vue';
 import { useAppLocale } from '../composables/useAppLocale';
 import AnnouncementMarquee from '../components/AnnouncementMarquee.vue';
 import BottomNavIcon from '../components/BottomNavIcon.vue';
-import { computed, onMounted } from 'vue';
+import { computed, onMounted, watch } from 'vue';
 import { useAnnouncements } from '../composables/useAnnouncements';
 
-const { t } = useI18n();
+const { t, locale } = useI18n();
 const auth = useAuthStore();
 const { initFromUser } = useAppLocale();
 const route = useRoute();
@@ -26,6 +26,10 @@ onMounted(() => {
   loadAnnouncements();
   if (auth.user?.locale) initFromUser(auth.user.locale);
 });
+
+watch(locale, (next, prev) => {
+  if (prev && next !== prev) void loadAnnouncements();
+});
 </script>
 
 <template>