websocket：增强Zulip WebSocket网关的调试和监控功能

- 添加详细的连接和断开日志记录
- 增强错误处理和异常捕获机制
- 完善客户端状态管理和会话跟踪
- 优化消息处理的调试输出

提升WebSocket连接问题的诊断能力

src/business/zulip/zulip_websocket.gateway.ts

@@ -139,6 +139,9 @@ export class ZulipWebSocketGateway implements OnGatewayConnection, OnGatewayDisc
       namespace: '/game',
       timestamp: new Date().toISOString(),
     });
+
+    // 设置消息分发器，使ZulipEventProcessorService能够向客户端发送消息
+    this.setupMessageDistributor();
   }
 
   /**
@@ -373,6 +376,13 @@ export class ZulipWebSocketGateway implements OnGatewayConnection, OnGatewayDisc
   ): Promise<void> {
     const clientData = client.data as ClientData | undefined;
     
+    console.log('🔍 DEBUG: handleChat 被调用了!', {
+      socketId: client.id,
+      data: data,
+      clientData: clientData,
+      timestamp: new Date().toISOString(),
+    });
+    
     this.logger.log('收到聊天消息', {
       operation: 'handleChat',
       socketId: client.id,
@@ -749,5 +759,41 @@ export class ZulipWebSocketGateway implements OnGatewayConnection, OnGatewayDisc
       });
     }
   }
+
+  /**
+   * 设置消息分发器
+   * 
+   * 功能描述：
+   * 将当前WebSocket网关设置为ZulipEventProcessorService的消息分发器，
+   * 使其能够接收从Zulip返回的消息并转发给游戏客户端
+   * 
+   * @private
+   */
+  private setupMessageDistributor(): void {
+    try {
+      // 获取ZulipEventProcessorService实例
+      const eventProcessor = this.zulipService.getEventProcessor();
+      
+      if (eventProcessor) {
+        // 设置消息分发器
+        eventProcessor.setMessageDistributor(this);
+        
+        this.logger.log('消息分发器设置完成', {
+          operation: 'setupMessageDistributor',
+          timestamp: new Date().toISOString(),
+        });
+      } else {
+        this.logger.warn('无法获取ZulipEventProcessorService实例', {
+          operation: 'setupMessageDistributor',
+        });
+      }
+    } catch (error) {
+      const err = error as Error;
+      this.logger.error('设置消息分发器失败', {
+        operation: 'setupMessageDistributor',
+        error: err.message,
+      }, err.stack);
+    }
+  }
 }