Fixes perma sustenance vendor not selling to people (#221)

* Fixes perma sustenance vendor not selling to people (#80666)

## About The Pull Request

Fixes #80568
Makes the whole asking for labour points only apply to the labour camp
sustenance vendor instead of all sustenance vendors

Changes the text you get for trying to buy from the sustenance vendor
without prisoner ID to clarify it only sells to prisoners

## Why It's Good For The Game

Billions of prisoners must eat moldy tofu

## Changelog
:cl:
fix: The sustenance vendor in perma actually serves food now
/:cl:

* Fixes perma sustenance vendor not selling to people

---------

Co-authored-by: uaioy <[email protected]>
Co-authored-by: NovaBot <[email protected]>

code/modules/vending/sustenance.dm

@@ -44,11 +44,11 @@
 	if(isliving(user))
 		var/mob/living/living_user = user
 		if(!(machine_stat & NOPOWER) && !istype(living_user.get_idcard(TRUE), /obj/item/card/id/advanced/prisoner))
-			speak("No valid labor points account found. Vending is not permitted.")
+			speak("No valid prisoner account found. Vending is not permitted.")
 			return
 	return ..()
 
-/obj/machinery/vending/sustenance/proceed_payment(obj/item/card/id/paying_id_card, datum/data/vending_product/product_to_vend, price_to_use)
+/obj/machinery/vending/sustenance/labor_camp/proceed_payment(obj/item/card/id/paying_id_card, datum/data/vending_product/product_to_vend, price_to_use)
 	if(!istype(paying_id_card, /obj/item/card/id/advanced/prisoner))
 		speak("I don't take bribes! Pay with labor points!")
 		return FALSE
@@ -66,7 +66,7 @@
 	paying_scum_id.points -= price_to_use
 	return TRUE
 
-/obj/machinery/vending/sustenance/fetch_balance_to_use(obj/item/card/id/passed_id)
+/obj/machinery/vending/sustenance/labor_camp/fetch_balance_to_use(obj/item/card/id/passed_id)
 	if(!istype(passed_id, /obj/item/card/id/advanced/prisoner))
 		return null //no points balance - no balance at all
 	var/obj/item/card/id/advanced/prisoner/paying_scum_id = passed_id