Partial atmos refactor (#22521)

* Reduce atmos component queries

* Remove method events

* Cache airtight data

* Make MolesArchived nullable

* Fix airtight cache

* only get tile def once

* Immutable mixtures

* firelock queries

* misc

* misc cleanup

* Trim disconnected tiles

* Fix merge issues and bugs

* Why does the PR keep increasing in scope

* debug overlay

* Fix bugs

* Fix test, remove unused events

* Add setmapatmos command

* Fix overlays

* Add map check

* A

* Resolve conflicts with #26102

* Remove some obsolete methods

Content.Server/Parallax/BiomeSystem.cs

@@ -1001,20 +1001,13 @@ public sealed partial class BiomeSystem : SharedBiomeSystem
         light.AmbientLightColor = Color.FromHex("#D8B059");
         Dirty(mapUid, light, metadata);
 
-        // Atmos
-        var atmos = EnsureComp<MapAtmosphereComponent>(mapUid);
-
         var moles = new float[Atmospherics.AdjustedNumberOfGases];
         moles[(int) Gas.Oxygen] = 21.824779f;
         moles[(int) Gas.Nitrogen] = 82.10312f;
 
-        var mixture = new GasMixture(2500)
-        {
-            Temperature = 293.15f,
-            Moles = moles,
-        };
+        var mixture = new GasMixture(moles, Atmospherics.T20C);
 
-        _atmos.SetMapAtmosphere(mapUid, false, mixture, atmos);
+        _atmos.SetMapAtmosphere(mapUid, false, mixture);
     }
 
     /// <summary>