docs(zulip): 完善Zulip业务模块功能文档

范围: src/business/zulip/README.md
- 补充对外提供的接口章节（14个公共方法）
- 添加使用的项目内部依赖说明（7个依赖）
- 完善核心特性描述（5个特性）
- 添加潜在风险评估（4个风险及缓解措施）
- 优化文档结构和内容完整性

test/zulip_integration/chat_message_e2e.spec.ts

@@ -7,27 +7,33 @@
  * - 测试真实的网络请求和响应处理
  * 
  * 测试范围：
- * - WebSocket → ZulipService → ZulipClientPool → ZulipClient → Zulip API
+ * - WebSocket → ChatService → ZulipClientPool → ZulipClient → Zulip API
+ * 
+ * 更新记录：
+ * - 2026-01-14: 重构后更新 - 使用新的四层架构模块
+ *   - ChatService 替代 ZulipService
+ *   - ChatSessionService 替代 SessionManagerService
  * 
  * @author moyin
- * @version 1.0.0
+ * @version 2.0.0
  * @since 2026-01-10
+ * @lastModified 2026-01-14
  */
 
 import { Test, TestingModule } from '@nestjs/testing';
 import { INestApplication } from '@nestjs/common';
-import { ZulipService } from '../../src/business/zulip/zulip.service';
+import { ChatService } from '../../src/business/chat/chat.service';
+import { ChatSessionService } from '../../src/business/chat/services/chat_session.service';
 import { ZulipClientPoolService } from '../../src/core/zulip_core/services/zulip_client_pool.service';
 import { ZulipClientService, ZulipClientInstance } from '../../src/core/zulip_core/services/zulip_client.service';
-import { SessionManagerService } from '../../src/business/zulip/services/session_manager.service';
 import { AppModule } from '../../src/app.module';
 
 describe('ChatMessage E2E Integration', () => {
   let app: INestApplication;
-  let zulipService: ZulipService;
+  let chatService: ChatService;
   let zulipClientPool: ZulipClientPoolService;
   let zulipClient: ZulipClientService;
-  let sessionManager: SessionManagerService;
+  let sessionManager: ChatSessionService;
   
   // 模拟的Zulip客户端
   let mockZulipSdkClient: any;
@@ -48,11 +54,11 @@ describe('ChatMessage E2E Integration', () => {
 
     app = moduleFixture.createNestApplication();
     
-    // 获取服务实例
-    zulipService = moduleFixture.get<ZulipService>(ZulipService);
+    // 获取服务实例（使用新的四层架构模块）
+    chatService = moduleFixture.get<ChatService>(ChatService);
     zulipClientPool = moduleFixture.get<ZulipClientPoolService>(ZulipClientPoolService);
     zulipClient = moduleFixture.get<ZulipClientService>(ZulipClientService);
-    sessionManager = moduleFixture.get<SessionManagerService>(SessionManagerService);
+    sessionManager = moduleFixture.get<ChatSessionService>(ChatSessionService);
 
     await app.init();
   });
@@ -110,7 +116,7 @@ describe('ChatMessage E2E Integration', () => {
   describe('完整的聊天消息流程', () => {
     it('应该成功处理从登录到消息发送的完整流程', async () => {
       // 1. 模拟用户登录
-      const loginResult = await zulipService.handlePlayerLogin({
+      const loginResult = await chatService.handlePlayerLogin({
         socketId: testSocketId,
         token: 'valid-jwt-token', // 这里需要有效的JWT token
       });
@@ -121,7 +127,7 @@ describe('ChatMessage E2E Integration', () => {
         expect(loginResult.sessionId).toBeDefined();
 
         // 2. 发送聊天消息
-        const chatResult = await zulipService.sendChatMessage({
+        const chatResult = await chatService.sendChatMessage({
           socketId: testSocketId,
           content: 'Hello from E2E test!',
           scope: 'local',
@@ -153,7 +159,7 @@ describe('ChatMessage E2E Integration', () => {
         );
 
         // 发送消息
-        const chatResult = await zulipService.sendChatMessage({
+        const chatResult = await chatService.sendChatMessage({
           socketId: testSocketId,
           content: 'Hello from E2E test with mock session!',
           scope: 'local',
@@ -175,7 +181,7 @@ describe('ChatMessage E2E Integration', () => {
       );
 
       // 测试本地消息
-      const localResult = await zulipService.sendChatMessage({
+      const localResult = await chatService.sendChatMessage({
         socketId: testSocketId,
         content: 'Local message test',
         scope: 'local',
@@ -191,7 +197,7 @@ describe('ChatMessage E2E Integration', () => {
       expect(localCall[0].to).toBe('Whale Port'); // 应该路由到地图对应的Stream
 
       // 测试全局消息
-      const globalResult = await zulipService.sendChatMessage({
+      const globalResult = await chatService.sendChatMessage({
         socketId: testSocketId,
         content: 'Global message test',
         scope: 'global',
@@ -218,7 +224,7 @@ describe('ChatMessage E2E Integration', () => {
       );
 
       // 测试正常消息
-      const normalResult = await zulipService.sendChatMessage({
+      const normalResult = await chatService.sendChatMessage({
         socketId: testSocketId,
         content: 'This is a normal message',
         scope: 'local',
@@ -226,7 +232,7 @@ describe('ChatMessage E2E Integration', () => {
       expect(normalResult.success).toBe(true);
 
       // 测试空消息
-      const emptyResult = await zulipService.sendChatMessage({
+      const emptyResult = await chatService.sendChatMessage({
         socketId: testSocketId,
         content: '',
         scope: 'local',
@@ -235,7 +241,7 @@ describe('ChatMessage E2E Integration', () => {
 
       // 测试过长消息
       const longMessage = 'A'.repeat(2000); // 假设限制是1000字符
-      const longResult = await zulipService.sendChatMessage({
+      const longResult = await chatService.sendChatMessage({
         socketId: testSocketId,
         content: longMessage,
         scope: 'local',
@@ -262,7 +268,7 @@ describe('ChatMessage E2E Integration', () => {
         code: 'STREAM_NOT_FOUND',
       });
 
-      const result = await zulipService.sendChatMessage({
+      const result = await chatService.sendChatMessage({
         socketId: testSocketId,
         content: 'This message will fail',
         scope: 'local',
@@ -286,7 +292,7 @@ describe('ChatMessage E2E Integration', () => {
       // 模拟网络异常
       mockZulipSdkClient.messages.send.mockRejectedValueOnce(new Error('Network timeout'));
 
-      const result = await zulipService.sendChatMessage({
+      const result = await chatService.sendChatMessage({
         socketId: testSocketId,
         content: 'This will timeout',
         scope: 'local',
@@ -423,7 +429,7 @@ describe('ChatMessage E2E Integration', () => {
 
       // 发送大量消息
       const promises = Array.from({ length: messageCount }, (_, i) =>
-        zulipService.sendChatMessage({
+        chatService.sendChatMessage({
           socketId: testSocketId,
           content: `Performance test message ${i}`,
           scope: 'local',
@@ -445,4 +451,4 @@ describe('ChatMessage E2E Integration', () => {
       expect(avgTimePerMessage).toBeLessThan(100);
     }, 30000);
   });
-});
+});