Fixes clockwork sigil candidate runtime, cleans up some jobban checks with defines (#5304)

code/modules/mob/living/silicon/robot/life.dm

@@ -46,7 +46,7 @@
 			connected_ai = null
 		if(mind)
 			if(!mind.special_role)
-				mind.special_role = "traitor"
+				mind.special_role = ROLE_TRAITOR
 				mind.add_antag_datum(/datum/antagonist/auto_custom) // ????
 
 

code/modules/mob/living/silicon/robot/robot.dm

@@ -826,7 +826,7 @@
 
 /mob/living/silicon/robot/modules/syndicate
 	icon_state = "syndie_bloodhound"
-	faction = list("syndicate")
+	faction = list(ROLE_SYNDICATE)
 	bubble_icon = "syndibot"
 	req_access = list(ACCESS_SYNDICATE)
 	lawupdate = FALSE

code/modules/mob/living/silicon/robot/robot_defense.dm

@@ -118,11 +118,7 @@
 		log_game("[key_name(user)] attempted to emag cyborg [key_name(src)], but they were a syndicate cyborg.")
 		return
 
-	var/ai_is_antag = 0
-	if(connected_ai && connected_ai.mind)
-		if(connected_ai.mind.special_role)
-			ai_is_antag = (connected_ai.mind.special_role == "traitor")
-	if(ai_is_antag)
+	if(connected_ai && connected_ai.mind && connected_ai.mind.has_antag_datum(/datum/antagonist/traitor))
 		to_chat(src, "<span class='danger'>ALERT: Foreign software execution prevented.</span>")
 		to_chat(connected_ai, "<span class='danger'>ALERT: Cyborg unit \[[src]] successfully defended against subversion.</span>")
 		log_game("[key_name(user)] attempted to emag cyborg [key_name(src)], but they were slaved to traitor AI [connected_ai].")