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();
     }
 }

Processing/ProcessManager.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Concurrent;
+using RemSox.UI.GUI.Windows;
 
 namespace RemSox.Processing;
 
@@ -18,7 +19,22 @@ public static class ProcessManager
             Id = id
         };
 
-        Thread thread = new(process.Run);
+        Thread thread = new(() =>
+        {
+            try
+            {
+                process.Run();
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"Process {process.Name} (ID: {process.Id}) terminated with an exception: {ex}");
+            }
+            finally
+            {
+                processes.TryRemove(id, out _);
+                WindowManager.CloseWindowsForProcess(id);
+            }
+        });
 
         processes.TryAdd(id, (process, thread));
 
@@ -34,6 +50,8 @@ public static class ProcessManager
 
         entry.Process.RequestStop();
 
+        WindowManager.CloseWindowsForProcess(processId);
+
         processes.TryRemove(processId, out _);
     }
 
@@ -41,7 +59,7 @@ public static class ProcessManager
     {
         foreach (var entry in processes.Values)
         {
-            entry.Process.RequestStop();
+            StopProcess(entry.Process.Id);
         }
 
         processes.Clear();

UI/GUI/Windows/WindowManager.cs

@@ -53,7 +53,7 @@ public static class WindowManager
 
         wasLeftButtonDown = leftButtonDown;
 
-        if (KeyboardManager.TryReadKey(out KeyEvent keyEvent))
+        while (KeyboardManager.TryReadKey(out KeyEvent keyEvent))
         {
             focusedWindow?.HandleKeyEvent(keyEvent);
         }
@@ -117,10 +117,15 @@ public static class WindowManager
     }
 
     public static void CloseWindowsForProcess(Process process)
+    {
+        CloseWindowsForProcess(process.Id);
+    }
+
+    public static void CloseWindowsForProcess(int processId)
     {
         lock (windowsLock)
         {
-            windows.Remove(process.Id);
+            windows.Remove(processId);
         }
     }