NPC refactor (#10122)

Co-authored-by: metalgearsloth <metalgearsloth@gmail.com>

Content.Server/NPC/Commands/NPCCommand.cs

@@ -0,0 +1,26 @@
+using Content.Server.Administration;
+using Content.Server.EUI;
+using Content.Server.NPC.UI;
+using Content.Shared.Administration;
+using Robust.Server.Player;
+using Robust.Shared.Console;
+
+namespace Content.Server.NPC.Commands;
+
+[AdminCommand(AdminFlags.Debug)]
+public sealed class NPCCommand : IConsoleCommand
+{
+    public string Command => "npc";
+    public string Description => "Opens the debug window for NPCs";
+    public string Help => $"{Command}";
+    public void Execute(IConsoleShell shell, string argStr, string[] args)
+    {
+        if (shell.Player is not IPlayerSession playerSession)
+        {
+            return;
+        }
+
+        var euiManager = IoCManager.Resolve<EuiManager>();
+        euiManager.OpenEui(new NPCEui(), playerSession);
+    }
+}