修复新人进房欢迎消息显示

app/Http/Controllers/ChatController.php

@@ -127,14 +127,9 @@ class ChatController extends Controller
             // 必须在推送新消息之前执行，否则可能误删刚刚创建的欢迎播报
             $this->chatState->removeOldWelcomeMessages($id, $user->username);
 
-            // 新人首次进入：赠送 6666 金币、播放满场烟花、发送全场欢迎通告
-            // 双重校验：优先以 has_received_new_gift 标记为准，若标记异常则用 created_at 时间兜底
+            // 新人首次进入：赠送 6666 金币、播放满场烟花、发送全场欢迎通告。
             $user->refresh();
             $isNewbie = ! $user->has_received_new_gift;
-            // 兜底：如果用户创建时间在 2 分钟内，即使标记异常也按新人处理
-            if (! $isNewbie && $user->created_at && $user->created_at->diffInSeconds(now()) < 120) {
-                $isNewbie = true;
-            }
             if ($isNewbie) {
                 // 通过统一积分服务发放新人礼包 6666 金币并记录流水
                 $this->currencyService->change(
@@ -153,6 +148,7 @@ class ChatController extends Controller
                     'font_color' => '#b91c1c',
                     'action' => '',
                     'welcome_user' => $user->username,
+                    'welcome_kind' => 'newbie_bonus',
                     'sent_at' => now()->toDateTimeString(),
                 ];
                 $this->chatState->pushMessage($id, $newbieMsg);
@@ -178,11 +174,13 @@ class ChatController extends Controller
                     'id' => $this->chatState->nextMessageId($id),
                     'room_id' => $id,
                     'from_user' => 'AI小班长',
-                    'to_user' => $user->username,
+                    'to_user' => '大家',
                     'content' => $aiWelcomeContent,
                     'is_secret' => false,
                     'font_color' => '#16a34a',
                     'action' => '大声宣告',
+                    'welcome_user' => $user->username,
+                    'welcome_kind' => 'ai_newbie_welcome',
                     'sent_at' => now()->toDateTimeString(),
                 ];
                 $this->chatState->pushMessage($id, $aiWelcomeMsg);
@@ -204,6 +202,7 @@ class ChatController extends Controller
                 'font_color' => $color,
                 'action' => empty($vipPresencePayload) ? 'system_welcome' : 'vip_presence',
                 'welcome_user' => $user->username,
+                'welcome_kind' => 'entry_broadcast',
                 'sent_at' => now()->toDateTimeString(),
             ];