修复新人进房欢迎消息显示

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

@@ -2642,13 +2642,20 @@
 
         // 后端下发的带有 welcome_user 的也是系统欢迎/离开消息，加上属性标记
         if (msg.welcome_user) {
+            const welcomeKind = msg.welcome_kind || 'entry_broadcast';
             div.setAttribute('data-system-user', msg.welcome_user);
-            // 收到后端来的新欢迎消息时，把界面上该用户旧的都删掉
-            const welcomeSelector = `[data-system-user="${msg.welcome_user}"]`;
-            const oldWelcomes = container.querySelectorAll(welcomeSelector);
-            oldWelcomes.forEach(el => el.remove());
-            renderBatch?.publicFragment.querySelectorAll(welcomeSelector).forEach(el => el.remove());
-            renderBatch?.privateFragment.querySelectorAll(welcomeSelector).forEach(el => el.remove());
+            div.setAttribute('data-system-welcome-kind', welcomeKind);
+            // 收到后端来的同类欢迎消息时，只替换同类旧消息，避免进场播报误删新人礼包和 AI 欢迎。
+            const removeSameWelcome = (root) => {
+                root?.querySelectorAll('[data-system-user]').forEach(el => {
+                    if (el.dataset.systemUser === msg.welcome_user && (el.dataset.systemWelcomeKind || 'entry_broadcast') === welcomeKind) {
+                        el.remove();
+                    }
+                });
+            };
+            removeSameWelcome(container);
+            removeSameWelcome(renderBatch?.publicFragment);
+            removeSameWelcome(renderBatch?.privateFragment);
         }
 
         // 路由规则（复刻原版）：