feat: 欢迎语增加右下角弹窗通知；禁止对「大家」发送欢迎

app/Http/Controllers/ChatController.php

@@ -449,6 +449,17 @@ class ChatController extends Controller
             $messageData = array_merge($messageData, $imagePayload);
         }
 
+        // 欢迎动作：增加右下角弹窗通知（内容含发送者信息）
+        if (($data['action'] ?? '') === '欢迎') {
+            $messageData['toast_notification'] = [
+                'title' => '👋 欢迎',
+                'message' => strip_tags($pureContent),
+                'icon' => '👋',
+                'color' => '#e11d48',
+                'duration' => 8000,
+            ];
+        }
+
         // 6.5 将用户当前激活的消息装扮注入广播 payload（气泡样式 + 昵称颜色），前端据此渲染消息外观
         $decorations = app(\App\Services\DecorationService::class)->getDecorationsForMessage($user);
         $messageData = array_merge($messageData, $decorations);

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')) {
+        // 若消息携带 toast_notification 字段且当前用户是接收者或为公屏广播或为欢迎动作，弹右下角小卡片
+        if (msg.toast_notification && (msg.to_user === window.chatContext?.username || msg.to_user === '大家' || msg.action === '欢迎')) {
             const t = msg.toast_notification;
             window.chatToast?.show({
                 title: t.title || "通知",

resources/views/chat/partials/scripts.blade.php

@@ -111,7 +111,11 @@
      */
     function sendWelcomeTpl(tpl) {
         const toUser = document.getElementById('to_user')?.value || '大家';
-        const name = toUser === '大家' ? '大家' : toUser;
+        if (toUser === '大家') {
+            window.chatDialog?.alert('欢迎语不能对「大家」发送，请先选择具体用户。', '🚫 提示', '#cc4444');
+            return;
+        }
+        const name = toUser;
         const prefix = window.chatContext?.welcomePrefix || window.chatContext?.username || '';
         const body = tpl.replace(/\{name\}/g, name);
         const msg = `${prefix}：${body}`;