Support stations with multiple z-levels (#35339)

* Remove ZLEVEL_STATION_PRIMARY

* Add Up and Down traits for use by ladders and chasms

* Give map_config creation its own proc

* Combine LoadConfig and ValidateJSON and remove transition_config

* Make space linkage a z-level trait

* Remove ZLEVEL_EMPTY_SPACE

* Update uses of GetFullMapPath

* Handle multi-Z stations and load Lavaland and Reebe at runtime

* Remove unused space maps

* Fix inappropriate z-expansion in map reader, improve logging

* Update comments relating to z-level configuration

* Add Lavaland and Reebe to ALL_MAPS

code/modules/ruins/objects_and_mobs/sin_ruins.dm

@@ -100,9 +100,16 @@
 /obj/structure/mirror/magic/pride/curse(mob/user)
 	user.visible_message("<span class='danger'><B>The ground splits beneath [user] as [user.p_their()] hand leaves the mirror!</B></span>", \
 	"<span class='notice'>Perfect. Much better! Now <i>nobody</i> will be able to resist yo-</span>")
+
 	var/turf/T = get_turf(user)
-	T.ChangeTurf(/turf/open/chasm/straight_down)
+	var/list/levels = SSmapping.levels_by_trait(ZTRAIT_SPACE_RUINS)
+	var/turf/dest
+	if (levels.len)
+		dest = locate(T.x, T.y, pick(levels))
+
+	T.ChangeTurf(/turf/open/chasm)
 	var/turf/open/chasm/C = T
+	C.set_target(dest)
 	C.drop(user)
 
 //can't be bothered to do sloth right now, will make later