feat(admin,player,api): 公共管理与优胜冠军国旗、玩家端内容对接

新增公共内容 CRUD 与批量操作；公告滚动合并管理；优胜冠军内置国家选择与单行保存；玩家端统一 usePlayerHome 对接轮播与跑马灯。

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

apps/player/src/layouts/MainLayout.vue

@@ -11,25 +11,30 @@ import { useAppLocale } from '../composables/useAppLocale';
 import AnnouncementMarquee from '../components/AnnouncementMarquee.vue';
 import BottomNavIcon from '../components/BottomNavIcon.vue';
 import { computed, onMounted, watch } from 'vue';
-import { useAnnouncements } from '../composables/useAnnouncements';
+import { usePlayerHome } from '../composables/usePlayerHome';
+import { useOnLocaleChange } from '../composables/useOnLocaleChange';
 
-const { t, locale } = useI18n();
+const { t } = useI18n();
 const auth = useAuthStore();
 const { initFromUser } = useAppLocale();
 const route = useRoute();
 const slip = useBetSlipStore();
 
 const showAnnouncement = computed(() => !route.path.startsWith('/profile'));
-const { items: announcements, load: loadAnnouncements } = useAnnouncements();
+const { announcements, load: loadPlayerHome } = usePlayerHome();
+
+useOnLocaleChange(loadPlayerHome);
 
 onMounted(() => {
-  loadAnnouncements();
   if (auth.user?.locale) initFromUser(auth.user.locale);
 });
 
-watch(locale, (next, prev) => {
-  if (prev && next !== prev) void loadAnnouncements();
-});
+watch(
+  () => auth.token,
+  (token) => {
+    if (token) void loadPlayerHome();
+  },
+);
 </script>
 
 <template>