Add barebone nuke (#5242)

Co-authored-by: Alexander Evgrashin <evgrashin.adl@gmail.com>

Content.Server/Nuke/NukeCodePaperSystem.cs

@@ -0,0 +1,27 @@
+using Content.Server.Paper;
+using Robust.Shared.GameObjects;
+using Robust.Shared.IoC;
+using Robust.Shared.Localization;
+
+namespace Content.Server.Nuke
+{
+    public class NukeCodePaperSystem : EntitySystem
+    {
+        [Dependency] private readonly NukeCodeSystem _codes = default!;
+
+        public override void Initialize()
+        {
+            base.Initialize();
+            SubscribeLocalEvent<NukeCodePaperComponent, MapInitEvent>(OnMapInit);
+        }
+
+        private void OnMapInit(EntityUid uid, NukeCodePaperComponent component, MapInitEvent args)
+        {
+            PaperComponent? paper = null;
+            if (!Resolve(uid, ref paper))
+                return;
+
+            paper.Content += _codes.Code;
+        }
+    }
+}