fix: 优化嵌入登录等待态并修复大厅与订单筛选交互

src/features/player/notifications-screen.tsx

@@ -24,10 +24,6 @@ export function NotificationsScreen() {
   return (
     <PlayerPanel title={t("notifications.title")} backHref="/hall">
       <div className="space-y-3">
-        <p className="rounded-xl border border-amber-200 bg-amber-50/90 px-3 py-2.5 text-xs leading-relaxed text-amber-900">
-          {t("notifications.subtitle")}
-        </p>
-
         <div className="flex items-center justify-between rounded-xl border border-[#dce7f7] bg-[#f8fbff] px-3 py-2.5">
           <p className="text-sm font-semibold text-[#0b3f96]">
             {t("notifications.unreadCount", { count: unreadCount })}