Add PTY Support for Interactive CLI Programs with Optimized Stream Handling

CodeUI.Core/CodeUI.Core.csproj

@@ -12,6 +12,7 @@
     <PackageReference Include="Microsoft.EntityFrameworkCore" />
     <PackageReference Include="CliWrap" />
     <PackageReference Include="System.Reactive" />
+    <PackageReference Include="Pty.Net" />
   </ItemGroup>
 
 </Project>

CodeUI.Core/Models/CliProcess.cs

@@ -26,6 +26,42 @@ public enum ProcessState
     Failed
 }
 
+/// <summary>
+/// Represents signals that can be sent to a process.
+/// </summary>
+public enum ProcessSignal
+{
+    /// <summary>
+    /// SIGINT - Interrupt signal (Ctrl+C).
+    /// </summary>
+    Interrupt = 2,
+
+    /// <summary>
+    /// SIGTERM - Termination signal.
+    /// </summary>
+    Terminate = 15,
+
+    /// <summary>
+    /// SIGKILL - Kill signal (cannot be caught or ignored).
+    /// </summary>
+    Kill = 9,
+
+    /// <summary>
+    /// SIGQUIT - Quit signal (Ctrl+\).
+    /// </summary>
+    Quit = 3,
+
+    /// <summary>
+    /// SIGSTOP - Stop signal (Ctrl+Z).
+    /// </summary>
+    Stop = 19,
+
+    /// <summary>
+    /// SIGCONT - Continue signal.
+    /// </summary>
+    Continue = 18
+}
+
 /// <summary>
 /// Represents a line of output from a CLI process.
 /// </summary>