Flatpacks and the Flatpacker 1001 (#23338)

* Flatpacker and flatpacks

* ok that's good enough

* convert solars/AME to flatpacks

* mats, mats, we are the mats

* basic mechanics are DONE

* thing

* final UI

* sloth

* rped jumpscare

* rename

Content.Client/Construction/UI/FlatpackCreatorBoundUserInterface.cs

@@ -0,0 +1,40 @@
+using Content.Shared.Construction.Components;
+using JetBrains.Annotations;
+
+namespace Content.Client.Construction.UI
+{
+    [UsedImplicitly]
+    public sealed class FlatpackCreatorBoundUserInterface : BoundUserInterface
+    {
+        [ViewVariables]
+        private FlatpackCreatorMenu? _menu;
+
+        public FlatpackCreatorBoundUserInterface(EntityUid owner, Enum uiKey) : base(owner, uiKey)
+        {
+        }
+
+        protected override void Open()
+        {
+            base.Open();
+
+            _menu = new FlatpackCreatorMenu(Owner);
+            _menu.OnClose += Close;
+
+            _menu.PackButtonPressed += () =>
+            {
+                SendMessage(new FlatpackCreatorStartPackBuiMessage());
+            };
+
+            _menu.OpenCentered();
+        }
+
+        protected override void Dispose(bool disposing)
+        {
+            base.Dispose(disposing);
+            if (!disposing)
+                return;
+
+            _menu?.Dispose();
+        }
+    }
+}