[READY] Atmos Refactor Part 7 (I think) - Kills signals + TGUIs stuff (#19867)

* I AM NOT A KING. I AM NOT A GOD. I AM LUNACY.

* THE SCOPE CREEP

* This was done in vi. No langserver. Send help.

* Progress

* Some issues fixed

* The code builds, but the maps dont

* CC builds, I doubt anything else does

* Do this now

* Safety

* The map compiles

* THE MAPPING HELL

* Airlock controllers dont work

* Fixed bombs

* AND THATS FIXED

* Phantom edit

* Restores LL I think

* The mapmerge hooks are actually retarded

* Fixes spawners

* Half working air control

* Picky

* Hyper efficient tank monitor

* Sanity

* Laying the framework

* Improved alert console

* Dont think this is actually done anywhere

* Metering

* ONE HUNDRED AND ~~EIGHTY~~ TWENTY SEVEN

* WE ARE READY FOR BOX TO BUILD

* One map done

* Well that was easy

* Another one

* I think this is done

* I should have removed this

* I would make a russian joke but <current event>

* Delta WIP

* Makes delta work

* Early review

* TM safeguard

* oops

* METAAAAAAAAAAAAAAAAAAAAAAAAA

* Fix #4213

* Trailing

* oh for piss sake

* Shutter fix

* Roundstart ATs can go away

* Review pass 1

* What could go wrong

* BOOM BOOM BOOM

* Not needed

* Fix seed vault

* Oops

* Review changes

code/modules/mapping/cerestation.dm

@@ -0,0 +1,3 @@
+// This file exists so that this PR cannot be testmerged at the same time as 19951
+// If it were to be TM'd at the same time, a lot of things would break
+// Remove this file before full merge