Adds the "Jestographic Sequencer", a clown-exclusive traitor item (#18933)

* Initial commit

* Removes ability for AI/door remotes to interface with cmagged doors

* Adds cleaning method, fixes windoor functionality, makes cmag slippery

* Cleaning cmagged doors checks for remaining space cleaner, cleanup

* Reduced TC cost from 6 to 4, fixed small bug

* Code review super happy funtime

* Adds cooldown to cmag airlock chuckle

* Cleanup, cmag door laugh no longer sounds through walls (again)

* Prevents blank spare IDs from passing through cmagged airlocks

* Cleanup

* Cmagged state is now carried by a trait instead of a global var, cleanup

* Adds early return that I missed, fixes small bug)

code/datums/uplink_item.dm

@@ -182,6 +182,15 @@ GLOBAL_LIST_INIT(uplink_items, subtypesof(/datum/uplink_item))
 	surplus = 75
 	job = list("Clown")
 
+/datum/uplink_item/jobspecific/cmag
+	name = "Jestographic Sequencer"
+	desc = "The jestographic sequencer, also known as a cmag, is a small card that inverts the access on any door it's used on. Perfect for locking command out of their own departments. Honk!"
+	reference = "CMG"
+	item = /obj/item/card/cmag
+	cost = 4
+	surplus = 75
+	job = list("Clown")
+
 /datum/uplink_item/jobspecific/trick_revolver
 	name = "Trick Revolver"
 	desc = "A revolver that will fire backwards and kill whoever attempts to use it. Perfect for those pesky vigilante or just a good laugh."