feat(transaction): 添加游戏事务系统 | add game transaction system (#381)

- TransactionManager/TransactionContext 事务管理
- MemoryStorage/RedisStorage/MongoStorage 存储实现
- CurrencyOperation/InventoryOperation/TradeOperation 内置操作
- SagaOrchestrator 分布式 Saga 编排
- withTransactions() Room 集成
- 完整中英文文档

packages/framework/transaction/src/distributed/index.ts

@@ -0,0 +1,15 @@
+/**
+ * @zh 分布式模块导出
+ * @en Distributed module exports
+ */
+
+export {
+    SagaOrchestrator,
+    createSagaOrchestrator,
+    type SagaOrchestratorConfig,
+    type SagaStep,
+    type SagaStepState,
+    type SagaStepLog,
+    type SagaLog,
+    type SagaResult,
+} from './SagaOrchestrator.js'