修复聊天室离开播报：显式点击离开按钮时绕过队列防抖，同步发送离开广播，解决本地无队列运行时播报丢失的问题

app/Http/Controllers/AuthController.php

@@ -184,6 +184,17 @@ class AuthController extends Controller
                 'out_time' => now(),
                 'out_info' => '正常退出了聊天室',
             ]);
+
+            // [NEW] 同步清除该用户在所有房间的在线状态和心跳，确保其如果马上重登，能触发全新入场欢迎
+            try {
+                $chatState = app(\App\Services\ChatStateService::class);
+                $roomIds = $chatState->getUserRooms($user->username);
+                foreach ($roomIds as $roomId) {
+                    $chatState->userLeave($roomId, $user->username);
+                }
+            } catch (\Exception $e) {
+                // 忽略清理缓存时发生的异常
+            }
         }
 
         Auth::logout();