Force map confirmation (#29391)

* Add map check to forcemap command

* remove debug line

* remove accidental newline

Content.Server/GameTicking/Commands/ForceMapCommand.cs

@@ -29,6 +29,12 @@ namespace Content.Server.GameTicking.Commands
             var gameMap = IoCManager.Resolve<IGameMapManager>();
             var name = args[0];
 
+            if (!gameMap.TrySelectMapIfEligible(name))
+            {
+                shell.WriteLine($"No eligible map exists with name {name}.");
+                return;
+            }
+
             _configurationManager.SetCVar(CCVars.GameMap, name);
             shell.WriteLine(Loc.GetString("forcemap-command-success", ("map", name)));
         }