Roundstart antag role restrictions revival (#20108)

Co-authored-by: Ray <vigersray@gmail.com>
Co-authored-by: deltanedas <@deltanedas:kde.org>

Content.Shared/Ghost/Roles/GhostRolesEuiMessages.cs

@@ -1,4 +1,5 @@
 using Content.Shared.Eui;
+using Content.Shared.Roles;
 using Robust.Shared.Serialization;
 
 namespace Content.Shared.Ghost.Roles
@@ -10,6 +11,7 @@ namespace Content.Shared.Ghost.Roles
         public string Name { get; set; }
         public string Description { get; set; }
         public string Rules { get; set; }
+        public HashSet<JobRequirement>? Requirements { get; set; }
     }
 
     [NetSerializable, Serializable]