Adds Icemoon Ruin: Syndicate Lab (#86545)

## About The Pull Request
Adds the Syndicate Lab to the Icemoon ruin pool. This can spawn on
either the cave or deep cave layers. It's a fairly small ruin so it's
easily missed, but it is packed full of danger and treasure.

![!](https://i.imgur.com/jHelQYi.png)

The outside of the lab is mostly covered in snow. There are a few small
gaps that may or may not be filled in by the cave generation algorithm.
From most angles, it blends into the ice moon enviroment. However, meson
glasses will reveal the structure at a glance.

This lab has multiple hostiles to provide threat, there's a turret near
the entrance (on the interior), a patrolling eviscerator, and two ranged
syndicate agents with shotguns. The ruin is pressurised by default, so
mining weapons are less effective.

As loot, the lab contains a Donk Co musket (single-shot combat shotgun,
like the old pipeguns), two syndicate explorer's suits, a syndeye disk,
a syndicate toolbox and some small gimmick items. The agents blow up on
death so you can't have their shotguns or gear.
## Why It's Good For The Game

I collected feedback for a while on ruins and a common complaint is that
Icebox's ruins are lacking in variety, especially in the loot and action
departments.

To address the loot issue, I've added a bunch of loot to this ruin that
previously could not spawn on Icebox. Mostly this is the fluffy and
gimmicky stuff currently exclusive to space ruins, like the Donk piñata
and anomaly releasers. Nothing especially powerful or round defining,
because the ruin can spawn close to the station and isn't particularly
hard to clear.

Threats are likewise all things that aren't usually avaliable on icebox.
Prepare for lasers, buckshot, slashing damage and all relevant wounds.
Without a syndicate card or agent ID the doors won't open and the ruin
is powered, so miners can die to hacking the door open, then getting run
over by a patrolling dedbot. Very funny. The ruin is designed not to be
easily rolled by mining gear, but it remains a viable option. Lasers are
designed to be particularly good here, to reward cooperation with
security.
## Changelog
🆑
add: Adds the Syndicate Lab to the Icemoon ruin pool.
/🆑

---------

Co-authored-by: Ghom <42542238+Ghommie@users.noreply.github.com>

code/datums/ruins/icemoon.dm

@@ -172,6 +172,12 @@
 	description = "Radio signals are being detected and the source is this completely innocent pile of snow."
 	suffix = "icemoon_underground_comms_agent.dmm"
 
+/datum/map_template/ruin/icemoon/underground/syndie_lab
+	name = "Ice-Ruin Syndicate Lab"
+	id = "syndie_lab"
+	description = "A small laboratory and living space for Syndicate agents."
+	suffix = "icemoon_underground_syndielab.dmm"
+
 //TODO: Bottom-Level ONLY Spawns after Refactoring Related Code
 /datum/map_template/ruin/icemoon/underground/plasma_facility
 	name = "Ice-Ruin Abandoned Plasma Facility"

code/game/area/areas/ruins/icemoon.dm

@@ -75,3 +75,7 @@
 /area/ruin/powered/hermit
 	name = "\improper Hermit's Cabin"
 
+/area/ruin/syndielab
+	name = "\improper Syndicate Lab"
+	ambience_index = AMBIENCE_DANGER
+	sound_environment = SOUND_ENVIRONMENT_CAVE

config/iceruinblacklist.txt

@@ -33,4 +33,5 @@
 #_maps/RandomRuins/IceRuins/icemoon_underground_library.dmm
 #_maps/RandomRuins/IceRuins/icemoon_underground_mailroom.dmm
 #_maps/RandomRuins/IceRuins/icemoon_underground_puzzle.dmm
+#_maps/RandomRuins/IceRuins/icemoon_underground_syndielab.dmm
 #_maps/RandomRuins/IceRuins/icemoon_underground_wrath.dmm