feat: update Godot integration and coordinated package dependencies

Runtime/ShrinkDataSaverRuntime.cs

@@ -11,6 +11,7 @@ namespace ShrinkDataSaver
         public ShrinkDataSaverSettings? SettingsOverride { get; set; }
         public int CurrentSaveVersion { get; set; } = 1;
         public bool DontDestroyOnLoadDriver { get; set; } = true;
+        public IStorageProvider? Storage { get; set; }
     }
 
     public static class ShrinkDataSaverRuntime
@@ -36,7 +37,7 @@ namespace ShrinkDataSaver
 
             var savesDir = Path.Combine(rootPath, "saves");
             var settingsPath = Path.Combine(rootPath, cfg.settingsFileName);
-            var storage = new LocalStorageProvider(rootPath);
+            var storage = config.Storage ?? new LocalStorageProvider(rootPath);
 
             ShrinkDataSaverPlatform.SettingsWriteDebounceSeconds = cfg.settingsWriteDebounceSeconds;
             ShrinkDataSaverPlatform.MaxSlots = cfg.maxSlots;