feat(server): 添加数据处理模块并增强服务器功能

- 新增 DataProcesser 类，用于处理数据包和管理会话
- 在 GateServer 中添加客户端管理、广播消息和服务器停止功能
- 优化 GateServer 的连接处理逻辑，增加客户端 ID 和信号处理

GateServer/DataProcess.js

@@ -0,0 +1,70 @@
+class DataProcesser {
+    constructor(maxSessionCount) {
+        this.maxSessionCount = maxSessionCount;
+        this.activeUser = 0;
+        this.sessions = new Array(maxSessionCount).fill(null);
+        this.sendThreads = [];
+        this.recvQueue = [];
+        this.serverBuf = { buffer: null, size: 0, offset: 0 };
+        this.userVerify = 1;
+        this.processRecvSize = 0;
+        this.waitSendUserSize = 0;
+        this.waitSendQueueSize = 0;
+        this.sendUserSize = 0;
+        this.recvSeverSize = 0;
+        this.lastProcUsrMsgTime = 0;
+        this.lastProcSrvMsgTime = 0;
+        this.lastRecvSrvMsgTime = 0;
+        this.procSrvThreadSleep = 0;
+        this.sendQueueSize = 0;
+        this.ignoreDataPacket = 0;
+        this.sndThreadSleepTime = 20;
+    }
+
+    initSessions() {
+        for (let i = 0; i < this.maxSessionCount; i++) {
+            this.sessions[i] = {
+                socket: null,
+                serverIdx: 0,
+                packetIdx: 0,
+                packetError: 0,
+                recvPacketCount: 0,
+                sendPacketCount: 0,
+                markToClose: false,
+                remoteClosed: false,
+                sendAvaliable: true,
+                sendTimeout: 0,
+                closeTick: 0,
+                connectTick: Date.now(),
+                clientMsgTick: Date.now(),
+                serverMsgTick: Date.now(),
+                verifyIdx: this.userVerify++,
+                recvBuf: { buffer: null, size: 0, offset: 0 },
+                sendBuf: { buffer: null, size: 0, offset: 0 }
+            };
+        }
+    }
+
+    processUserRecvPacket(session, buffer, bufferSize) {
+        // 处理用户接收到的数据包
+        // 这里需要实现具体的数据处理逻辑
+    }
+
+    sendServerMessage(ident, sessionIdx, socket, serverIdx, buffer, bufferSize) {
+        // 发送消息到服务器
+        // 这里需要实现具体的消息发送逻辑
+    }
+
+    startup() {
+        this.initSessions();
+        // 启动数据处理线程
+        // 这里需要实现具体的线程启动逻辑
+    }
+
+    stop() {
+        // 停止数据处理线程
+        // 这里需要实现具体的线程停止逻辑
+    }
+}
+
+module.exports = DataProcesser;