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/tokens.ts

@@ -0,0 +1,20 @@
+/**
+ * @zh Transaction 模块服务令牌
+ * @en Transaction module service tokens
+ */
+
+import { createServiceToken } from '@esengine/ecs-framework'
+import type { TransactionManager } from './core/TransactionManager.js'
+import type { ITransactionStorage } from './core/types.js'
+
+/**
+ * @zh 事务管理器令牌
+ * @en Transaction manager token
+ */
+export const TransactionManagerToken = createServiceToken<TransactionManager>('transactionManager')
+
+/**
+ * @zh 事务存储令牌
+ * @en Transaction storage token
+ */
+export const TransactionStorageToken = createServiceToken<ITransactionStorage>('transactionStorage')