feat: 公屏公告同时弹右下角通知（所有人可见）

app/Http/Controllers/AdminCommandController.php

@@ -524,6 +524,13 @@ class AdminCommandController extends Controller
             'font_color' => '#b91c1c',
             'action' => '',
             'sent_at' => now()->toDateTimeString(),
+            'toast_notification' => [
+                'title' => '📢 公屏公告',
+                'message' => strip_tags($content),
+                'icon' => '📢',
+                'color' => '#b91c1c',
+                'duration' => 10000,
+            ],
         ];
         $this->chatState->pushMessage($roomId, $msg);
         broadcast(new MessageSent($roomId, $msg));

resources/js/chat-room/chat-events.js

@@ -370,8 +370,8 @@ export function bindChatEvents() {
             window.showVipPresenceBanner(msg);
         }
 
-        // 若消息携带 toast_notification 字段且当前用户是接收者，弹右下角小卡片
-        if (msg.toast_notification && msg.to_user === window.chatContext?.username) {
+        // 若消息携带 toast_notification 字段且当前用户是接收者或为公屏广播，弹右下角小卡片
+        if (msg.toast_notification && (msg.to_user === window.chatContext?.username || msg.to_user === '大家')) {
             const t = msg.toast_notification;
             window.chatToast?.show({
                 title: t.title || "通知",