Allow non-humanoid roles (#9604)

Content.Shared/Roles/JobPrototype.cs

@@ -51,6 +51,14 @@ namespace Content.Shared.Roles
         [DataField("startingGear", customTypeSerializer: typeof(PrototypeIdSerializer<StartingGearPrototype>))]
         public string? StartingGear { get; private set; }
 
+        /// <summary>
+        /// Use this to spawn in as a non-humanoid (borg, test subject, etc.)
+        /// Starting gear will be ignored.
+        /// If you want to just add special attributes to a humanoid, use AddComponentSpecial instead.
+        /// </summary>
+        [DataField("jobEntity", customTypeSerializer: typeof(PrototypeIdSerializer<EntityPrototype>))]
+        public string? JobEntity = null;
+
         [DataField("icon")] public string Icon { get; } = string.Empty;
 
         [DataField("special", serverOnly:true)]