Adds a protection that blocks marking rank datums (#95654)

code/modules/admin/admin_ranks.dm

@@ -51,6 +51,14 @@ GLOBAL_PROTECT(protected_ranks)
 /datum/admin_rank/vv_edit_var(var_name, var_value)
 	return FALSE
 
+/datum/admin_rank/allow_mark_datum()
+	alert_to_permissions_elevation_attempt(usr)
+	return FALSE
+
+/datum/admin_rank/can_vv_mark()
+	alert_to_permissions_elevation_attempt(usr)
+	return FALSE
+
 // Adds/removes rights to this admin_rank
 /datum/admin_rank/proc/process_keyword(group, group_count, datum/admin_rank/previous_rank)
 	if(IsAdminAdvancedProcCall())

code/modules/admin/tag.dm

@@ -9,6 +9,9 @@
 		to_chat(owner, span_warning("[target_datum] is already tagged!"))
 		return
 
+	if(!target_datum.allow_mark_datum())
+		return
+
 	LAZYADD(tagged_datums, target_datum)
 	RegisterSignal(target_datum, COMSIG_QDELETING, PROC_REF(handle_tagged_del), override = TRUE)
 	to_chat(owner, span_notice("[target_datum] has been tagged."))

code/modules/admin/view_variables/mark_datum.dm

@@ -1,6 +1,8 @@
 /client/proc/mark_datum(datum/D)
 	if(!holder)
 		return
+	if(!D.allow_mark_datum())
+		return
 	if(holder.marked_datum)
 		holder.UnregisterSignal(holder.marked_datum, COMSIG_QDELETING)
 		vv_update_display(holder.marked_datum, "marked", "")
@@ -15,3 +17,7 @@ ADMIN_VERB_ONLY_CONTEXT_MENU(mark_datum, R_NONE, "Mark Object", datum/target as
 	SIGNAL_HANDLER
 	UnregisterSignal(marked_datum, COMSIG_QDELETING)
 	marked_datum = null
+
+/// Will this datum allow itself to be marked by vv?
+/datum/proc/allow_mark_datum()
+	return TRUE