Fix AUI interaction checks (#7130)

Content.Server/UserInterface/ActivatableUIComponent.cs

@@ -33,6 +33,22 @@ namespace Content.Server.UserInterface
         [DataField("verbText")]
         public string VerbText = "ui-verb-toggle-open";
 
+        /// <summary>
+        ///     Whether you need a hand to operate this UI. The hand does not need to be free, you just need to have one.
+        /// </summary>
+        /// <remarks>
+        ///     This should probably be true for most machines & computers, but there will still be UIs that represent a
+        ///     more generic interaction / configuration that might not require hands.
+        /// </remarks>
+        [DataField("requireHands")]
+        public bool RequireHands = true;
+
+        /// <summary>
+        ///     Whether spectators (non-admin ghosts) should be allowed to view this UI.
+        /// </summary>
+        [DataField("allowSpectator")]
+        public bool AllowSpectator = true;
+
         /// <summary>
         ///     The client channel currently using the object, or null if there's none/not single user.
         ///     NOTE: DO NOT DIRECTLY SET, USE ActivatableUISystem.SetCurrentSingleUser