Add process exception handling and clean window closing logic

Processes/DesktopProcess.cs

@@ -69,7 +69,7 @@ public class DesktopProcess : Process
             WindowManager.Update();
 
             // Sleep slightly to yield CPU to the main CLI thread (approx 60 FPS)
-            //Thread.Sleep(16);
+            Thread.Sleep(16);
         }
 
         IsRunning = false;

Processes/TerminalProcess.cs

@@ -140,14 +140,13 @@ public class TerminalProcess : Process
             // The last line is the input line
             textLines[maxLines].Content = "> " + currentInput + "_";
             textLines[maxLines].Position = new Point(5, startY + (maxLines * LineHeight));
-
-            // Hide any extra text lines we don't need
+// Hide any extra text lines we don't need
             for (int i = maxLines + 1; i < textLines.Count; i++)
             {
                 textLines[i].Content = "";
             }
-
-            window.Flush();
         }
+
+        window.Flush();
     }
 }