Restructure repository to include all source folders

Move git root from Client/ to src/ to track all source code:
- Client: Game client source (moved to Client/Client/)
- Server: Game server source
- GameTools: Development tools
- CryptoSource: Encryption utilities
- database: Database scripts
- Script: Game scripts
- rylCoder_16.02.2008_src: Legacy coder tools
- GMFont, Game: Additional resources

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Server/Billing/한게임 통합빌링 테스트모듈/BillingAsyncSocket.h

@@ -0,0 +1,63 @@
+#pragma once
+
+#include <deque>
+#include "HanUnitedBillingPacket.h"
+
+// CBillingAsyncSocket <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>Դϴ<D4B4>.
+
+class CBillingAsyncSocket : public CAsyncSocket
+{
+public:
+
+    enum ConnectionMode
+    {
+        ACTIVE_CONNECTION,
+        PASSIVE_CONNECTION
+    };
+
+	static CBillingAsyncSocket* CreateBillingSocket(int nSocketType = SOCK_STREAM, UINT nSocketPort = 0);
+
+    void SendPending(const HanUnitedBilling::GLTransStruct& glTransStruct);
+    void SendPacket();
+
+    const SOCKADDR& GetPeerAddr()   { return m_PeerAddress; }
+    const char* GetPeerAddrString() { return inet_ntoa(reinterpret_cast<SOCKADDR_IN&>(m_PeerAddress).sin_addr); }
+
+    virtual void OnAccept(int nErrorCode);
+    virtual void OnReceive(int nErrorCode);
+    virtual void OnSend(int nErrorCode);
+    virtual void OnClose(int nErrorCode);
+    virtual void OnConnect(int nErrorCode);
+
+    LONG AddRef();
+    LONG Release();
+
+protected:
+
+    CBillingAsyncSocket();
+	virtual ~CBillingAsyncSocket();
+
+private:
+
+    typedef std::deque<HanUnitedBilling::GLTransStruct> SendPacketList;
+
+    SOCKADDR        m_PeerAddress;
+    int             m_nAddressLen;
+
+    ConnectionMode  m_eConnectionMode;
+    LONG            m_nRefCount;
+
+    SendPacketList  m_SendPacketList;
+    size_t          m_nSendBytesFirstPacket;
+
+    enum
+    {
+        MAX_RECV_BUFFER = sizeof(HanUnitedBilling::GLTransStruct) * 10
+    };
+
+    char    m_szRecvBuffer[MAX_RECV_BUFFER];
+    size_t  m_nBufferUsed;
+
+};
+
+