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/NFAuthTool/NFAuthClient/NFIPSec.h

@@ -0,0 +1,45 @@
+#pragma once
+
+#include <vector>
+
+typedef struct IPBAND
+{
+	DWORD	start;
+	DWORD	end;
+}*LPIPBAND;
+
+class NFIPSec
+{
+public:
+	NFIPSec(void);
+	~NFIPSec(void);
+
+public:
+	void LoadAllowIP(WCHAR* lpIPFileName);
+	void LoadBlockIP(WCHAR* lpIPFileName);
+	void LoadAllowIPZ(WCHAR* lpIPFileName);
+	void LoadBlockIPZ(WCHAR* lpIPFileName);
+
+	int SerializeOut(int iType, int iPos, int iCount, char* lpBuffer_Out);
+	void SerializeIn(int iType, int iCount, char* lpBuffer_In);
+
+	inline void ClearAllowIP() { m_vecAllowIP.clear(); }
+	inline void ClearBlockIP() { m_vecBlockIP.clear(); }
+
+	BOOL IsAliveIP(const char * strIP);
+	BOOL IsAliveIP(unsigned long dwIP);
+
+	BOOL CheckAllowIP(const char * strIP);
+	BOOL CheckAllowIP(unsigned long dwIP);
+
+	BOOL CheckBlockIP(const char * strIP);
+	BOOL CheckBlockIP(unsigned long dwIP);
+
+	inline int GetAllowIPCount() { return (int)m_vecAllowIP.size(); }
+	inline int GetBlockIPCount() { return (int)m_vecBlockIP.size(); }
+
+private:
+	std::vector<IPBAND> m_vecAllowIP;
+	std::vector<IPBAND> m_vecBlockIP;
+
+};