New event: Approaching unknown shuttle (#24490)

* setup codebase

* Add first shuttle

* tak

* sync striker

* sync 2

* pipipi

* Preloaded roundstart shuttles!

* Make it abstract "PreloaderGrid" not "PreloaderShuttle"

* to do

* added china cuisin shuttle

* fixes

* add disaster evacpod

* remove enemy

* final shuttles

* weight 5 -> 10

* move data to component

* remove autotrailer touching

* doc, respath

* fix frozen positioning

* fixes + cvar

* finally

* fix evacpod

* remove blacklistrules

* remove `UnknownShuttleSpawnRule`, refactor `LoadMapRule` to support preloaded grids

* use tryload

* cleanup

* fixes

* use preloadedgrid for loneops

* weight unknown shuttles differently (preliminal)

* leftover

* cleanup and raffling

* partial review

* singleton gridpreloader no station coupling

* fix grid atmoses

* `roleLoadout` support for `LoadoutComponent`, fix missing gear

* weighting changes

* init logic fix

---------

Co-authored-by: Kara <lunarautomaton6@gmail.com>

Content.Server/StationEvents/Events/StationEventSystem.cs

@@ -1,3 +1,4 @@
+using System.Linq;
 using Content.Server.Administration.Logs;
 using Content.Server.Chat.Systems;
 using Content.Server.GameTicking.Components;
@@ -42,6 +43,7 @@ public abstract class StationEventSystem<T> : GameRuleSystem<T> where T : ICompo
         if (!TryComp<StationEventComponent>(uid, out var stationEvent))
             return;
 
+
         AdminLogManager.Add(LogType.EventAnnounced, $"Event added / announced: {ToPrettyString(uid)}");
 
         if (stationEvent.StartAnnouncement != null)