Salvage magnet revamp (#23119)

* Generic offering window

* More work

* weh

* Parity

* Progression meter

* magnet

* rona

* PG asteroid work

* code red

* Asteroid spawnings

* clams

* a

* Marker fixes

* More fixes

* Workings of biome asteroids

* A

* Fix this loading code

* a

* Fix masking

* weh

* Fixes

* Magnet claiming

* toe

* petogue

* magnet

* Bunch of fixes

* Fix default

* Fixes

* asteroids

* Fix offerings

* Localisation and a bunch of fixes

* a

* Fixes

* Preliminary draft

* Announcement fixes

* Fixes and bump spawn rate

* Fix asteroid spawns and UI

* More fixes

* Expeditions fix

* fix

* Gravity

* Fix announcement rounding

* a

* Offset tweak

* sus

* jankass

* Fix merge

Content.Shared/Procedural/Dungeon.cs

@@ -2,7 +2,7 @@ namespace Content.Shared.Procedural;
 
 public sealed class Dungeon
 {
-    public readonly List<DungeonRoom> Rooms = new();
+    public readonly List<DungeonRoom> Rooms;
 
     /// <summary>
     /// Hashset of the tiles across all rooms.
@@ -14,4 +14,14 @@ public sealed class Dungeon
     public readonly HashSet<Vector2i> CorridorTiles = new();
 
     public readonly HashSet<Vector2i> CorridorExteriorTiles = new();
+
+    public Dungeon()
+    {
+        Rooms = new List<DungeonRoom>();
+    }
+
+    public Dungeon(List<DungeonRoom> rooms)
+    {
+        Rooms = rooms;
+    }
 }