add more compatonly scheme

src/Snap.Hutao/Snap.Hutao/Service/GachaLog/Factory/HutaoStatisticsFactory.cs

@@ -23,6 +23,9 @@ internal sealed class HutaoStatisticsFactory
     {
         this.context = context;
 
+        // TODO: when in new verion
+        // due to lack of newer metadata
+        // this can crash
         DateTimeOffset now = DateTimeOffset.Now;
         avatarEvent = context.GachaEvents.Single(g => g.From < now && g.To > now && g.Type == GachaConfigType.AvatarEventWish);
         avatarEvent2 = context.GachaEvents.Single(g => g.From < now && g.To > now && g.Type == GachaConfigType.AvatarEventWish2);

src/Snap.Hutao/Snap.Hutao/Service/Game/LaunchScheme.KnownSchemes.cs

@@ -25,6 +25,7 @@ internal sealed partial class LaunchScheme
         Channel = ChannelType.Default,
         SubChannel = SubChannelType.Default,
         IsOversea = false,
+        IsCompatOnly = true,
     };
 
     private static readonly LaunchScheme ServerChineseChannelOfficialSubChannelDefault = new()
@@ -54,6 +55,16 @@ internal sealed partial class LaunchScheme
         IsOversea = false,
     };
 
+    private static readonly LaunchScheme ServerChineseChannelOfficialSubChannelEpicCompatOnly = new()
+    {
+        LauncherId = SdkStaticLauncherChineseId,
+        Key = SdkStaticLauncherChineseKey,
+        Channel = ChannelType.Official,
+        SubChannel = SubChannelType.Epic,
+        IsOversea = false,
+        IsCompatOnly = true,
+    };
+
     private static readonly LaunchScheme ServerChineseChannelBilibiliSubChannelDefault = new()
     {
         LauncherId = SdkStaticLauncherBilibiliId,
@@ -122,6 +133,7 @@ internal sealed partial class LaunchScheme
             ServerChineseChannelOfficialSubChannelDefault,
             ServerChineseChannelOfficialSubChannelOfficial,
             ServerChineseChannelOfficialSubChannelNoTapTap,
+            ServerChineseChannelOfficialSubChannelEpicCompatOnly,
 
             // 渠道服
             ServerChineseChannelBilibiliSubChannelDefault,