unlock convenant after finish intimate chat

GameServer/Server/CallGS/Handlers/Preview/RecordConfession.cs

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+using MikuSB.Database.Player;
+using MikuSB.GameServer.Server.CallGS.Handlers.Misc;
+using MikuSB.Proto;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace MikuSB.GameServer.Server.CallGS.Handlers.Preview;
+
+[CallGSApi("RecordConfession")]
+public class RecordConfession : ICallGSHandler
+{
+    private const int MainSceneGID = 132;
+    public async Task Handle(Connection connection, string param, ushort seqNo)
+    {
+        var req = JsonSerializer.Deserialize<RecordConfessionParam>(param);
+        if (req == null) return;
+        var sid = req.Id + 10;
+        var player = connection.Player!;
+        var attr = player.Data.Attrs
+            .FirstOrDefault(x => x.Gid == MainSceneGID && x.Sid == sid);
+        if (attr == null)
+        {
+            attr = new PlayerAttr
+            {
+                Gid = MainSceneGID,
+                Sid = sid,
+                Val = 1
+            };
+            player.Data.Attrs.Add(attr);
+        }
+        var sync = new NtfSyncPlayer();
+        sync.Custom[player.ToPackedAttrKey(MainSceneGID, sid)] = attr.Val;
+        sync.Custom[player.ToShiftedAttrKey(MainSceneGID, sid)] = attr.Val;
+        await CallGSRouter.SendScript(connection, "RecordConfession", "{}", sync);
+    }
+}
+
+internal sealed class RecordConfessionParam
+{
+    [JsonPropertyName("nIdx")]
+    public uint Id { get; set; }
+}