fix(bugs): some gacha and visual issues

src/CapySR.Data/Excel/ChallengeRows.cs

@@ -175,6 +175,13 @@ public sealed class TutorialGuideGroupExcel
     public uint GroupID { get; set; }
 }
 
+public sealed class GachaCeilingExcel
+{
+    public string GachaType { get; set; } = string.Empty;
+
+    public List<uint> CeilingItemList { get; set; } = [];
+}
+
 // maps an item id to its main/sub type. the client NPEs on an item it cannot type.
 public sealed class ItemConfigExcel
 {

src/CapySR.Data/GameData.Merge.cs

@@ -114,4 +114,9 @@ public sealed partial class GameData
         row.TryGetPropertyValue(name, out var node) && node is not null && node.GetValueKind() is JsonValueKind.Number
             ? node.GetValue<uint>()
             : null;
+
+    private static string? Str(JsonObject row, string name) =>
+        row.TryGetPropertyValue(name, out var node) && node is not null && node.GetValueKind() is JsonValueKind.String
+            ? node.GetValue<string>()
+            : null;
 }

src/CapySR.Data/GameData.cs

@@ -120,6 +120,9 @@ public sealed partial class GameData
 
     public IReadOnlyList<uint> TutorialGuideIds { get; private set; } = [];
 
+    // the standard banner's guaranteed 5* pool
+    public IReadOnlyList<uint> GachaCeilingAvatars { get; private set; } = [];
+
     // every relic / lightcone id the client can resolve a type for
     public IReadOnlySet<uint> KnownRelicIds { get; private set; } = new HashSet<uint>();
 
@@ -207,6 +210,9 @@ public sealed partial class GameData
         data.MainMissions = data.Merge<MainMissionExcel>("MainMission.json", r => UInt(r, "MainMissionID"), required: false);
         data.TutorialIds = [.. data.Merge<TutorialExcel>("TutorialData.json", r => UInt(r, "TutorialID"), required: false).Keys];
         data.TutorialGuideIds = [.. data.Merge<TutorialGuideGroupExcel>("TutorialGuideGroup.json", r => UInt(r, "GroupID"), required: false).Keys];
+        data.GachaCeilingAvatars = [.. data
+            .Merge<GachaCeilingExcel>("GachaCeiling.json", r => Str(r, "GachaType") == "Normal" ? 0u : null, required: false)
+            .Values.SelectMany(r => r.CeilingItemList)];
         data.KnownRelicIds = data.Merge<ItemConfigExcel>("ItemConfigRelic.json", r => UInt(r, "ID"), required: false).Keys.ToHashSet();
         data.KnownLightconeIds = data.Merge<ItemConfigExcel>("ItemConfigEquipment.json", r => UInt(r, "ID"), required: false).Keys.ToHashSet();