Things were working, suddenly regressed

SVSim.EmulatedEntrypoint/Models/Dtos/StoryNotification.cs

@@ -0,0 +1,21 @@
+using MessagePack;
+using System.Text.Json.Serialization;
+
+namespace SVSim.EmulatedEntrypoint.Models.Dtos;
+
+/// <summary>
+/// story_notification on /mypage/index, consumed by
+/// StoryNotification.SetStoryNotification (Wizard/StoryNotification.cs:20). The
+/// outer key is directly indexed; the inner fields are TryGetValue-defaulted.
+/// </summary>
+[MessagePackObject]
+public class StoryNotification
+{
+    [JsonPropertyName("is_display_ribbon")]
+    [Key("is_display_ribbon")]
+    public bool IsDisplayRibbon { get; set; }
+
+    [JsonPropertyName("is_display_badge")]
+    [Key("is_display_badge")]
+    public bool IsDisplayBadge { get; set; }
+}