Atmos Proposal - Whole Station Air Recirculation (HVAC) (#319)

An idea I had that enables the recirculation of air throughout the
entire station. This is needed for regulating station temperature
(something that Atmos seriously lacks) and ties into the Atmos Roadmap.

This also leads to cool emergent gameplay, and it can also lead to the
implementation of future systems like humidity and comfort based on
temperature.

![stationatmosHVAC drawio
(3)](https://github.com/user-attachments/assets/1f2c42a9-801b-48c6-bded-47537b7bac30)

src/SUMMARY.md

@@ -202,6 +202,7 @@ Space Station 14
 
 		- [Proposals]()
 			- [Atmos Rework](en/space-station-14/departments/atmos/proposals/atmos-rework.md)
+            - [Station Air Recirculation](/en/space-station-14/departments/atmos/proposals/station-air-recirculation.md)
 
 	- [Cargo/Salvage](en/space-station-14/departments/cargo-salvage.md)
 		- [PR Guidelines](en/space-station-14/departments/cargo-salvage/guidelines.md)