[READY]Helps address atmospherics nullspace runtimes (#32281)

* Helps fix atmospherics nullspace runtimes, adds debugging to pipe caches and makes the list accessible.

* I can spell properly guys

* Ok ok ok no global!

* Update construction.dm

code/controllers/subsystem/air.dm

@@ -27,6 +27,7 @@ SUBSYSTEM_DEF(air)
 	var/list/hotspots = list()
 	var/list/networks = list()
 	var/list/obj/machinery/atmos_machinery = list()
+	var/list/pipe_construction_generation_cache = list()