修复自动存点挂机经验重复累加和离线僵尸吃经验的漏洞，完善对应单元测试

app/Console/Commands/AutoSaveExp.php

@@ -87,14 +87,22 @@ class AutoSaveExp extends Command
         $totalProcessed = 0;
         $usersByUsername = $this->preloadOnlineUsers($roomMap);
 
+        $processedUsernames = [];
+
         foreach ($roomMap as $roomId => $usernames) {
             foreach ($usernames as $username) {
+                // 如果本轮已经处理过该用户，跳过发放经验（防止多房间/多开重复吃经验）
+                if (isset($processedUsernames[$username])) {
+                    continue;
+                }
+
                 $user = $usersByUsername->get($username);
                 if (! $user) {
                     continue;
                 }
 
                 $this->processUser($user, $roomId, $expGainRaw, $jjbGainRaw, $superLevel);
+                $processedUsernames[$username] = true;
                 $totalProcessed++;
             }
         }
@@ -125,7 +133,19 @@ class AutoSaveExp extends Command
             // Laravel 的 Redis facade 会自动加配置的前缀，与 ChatStateService 存入时完全一致
             $usernames = Redis::hkeys("room:{$roomId}:users");
             if (! empty($usernames)) {
-                $roomMap[(int) $roomId] = $usernames;
+                $activeUsernames = [];
+                foreach ($usernames as $username) {
+                    // 检查活跃标记是否存在（90秒内）
+                    if (Redis::exists("room:{$roomId}:alive:{$username}")) {
+                        $activeUsernames[] = $username;
+                    } else {
+                        // 懒清理僵尸数据
+                        Redis::hdel("room:{$roomId}:users", $username);
+                    }
+                }
+                if (! empty($activeUsernames)) {
+                    $roomMap[(int) $roomId] = $activeUsernames;
+                }
             }
         }