Add project files.

Beam.Temporary.Cli/Tracked.cs

@@ -0,0 +1,11 @@
+namespace Beam.Temporary.Cli {
+    internal class Tracked<T>(T obj) {
+        public T TrackedObject { get; set; } = obj;
+        public bool IsDirty { get; set; } = true;
+
+        public Tracked<T> SetDirty() {
+            IsDirty = true;
+            return this;
+        }
+    }
+}