Feature: Add Shine/HELL protocol selection to share/transfer host

Add a dedicated ShareHostDlg with a "Use Shine protocol" checkbox (default
checked) so the operator can choose Shine (0) or HELL (1) when sharing or
transferring a host. The chosen protocol is appended to the wire payload as a
trailing colon field: "IP:PORT:0/1" for share and "IP:PORT:days:0/1" for
transfer.

The client parses the trailing field from COMMAND_SHARE and
COMMAND_ASSIGN_MASTER, applies it to new connections, and persists it so
auto-share/auto-transfer on restart keeps the same protocol. Old clients
ignore the extra field, and old/missing payloads fall back to -1 (baked-in
HELL), preserving compatibility with existing servers and share_list entries.

Co-Authored-By: deepseek-v4-pro

server/2015Remote/ShareHostDlg.h

@@ -0,0 +1,45 @@
+#pragma once
+
+#include "resource.h"
+#include "LangManager.h"
+
+// 分享主机 / 转移主机 专用对话框（带 Shine/HELL 协议勾选）
+
+class CShareHostDlg : public CDialogLangEx
+{
+public:
+    CShareHostDlg(CWnd* pParent = nullptr, BOOL bNeedDays = FALSE);
+    virtual ~CShareHostDlg();
+
+    enum { IDD = IDD_DIALOG_SHARE_HOST };
+
+    void Init(LPCTSTR caption, LPCTSTR prompt);
+    void InitDays(LPCTSTR name, LPCTSTR defaultValue);   // 仅转移主机显示
+    void SetHistoryKey(LPCTSTR historyKey);
+
+    // 结果
+    CString m_str;      // 地址 IP:PORT
+    CString m_sDays;    // 天数（转移主机）
+    BOOL    m_bShine;   // TRUE=Shine(0), FALSE=HELL(1)
+
+protected:
+    virtual void DoDataExchange(CDataExchange* pDX);
+    virtual BOOL OnInitDialog();
+    virtual void OnOK();
+
+    DECLARE_MESSAGE_MAP()
+
+    CString m_sCaption;
+    CString m_sPrompt;
+    CString m_sDaysName;
+    CString m_sHistoryKey;
+    BOOL m_bNeedDays;
+
+    CComboBox m_ComboInput;
+    CStatic   m_StaticDays;
+    CEdit     m_EditDays;
+    CButton   m_CheckShine;
+
+    void LoadHistory();
+    void SaveHistory();
+};