Update: Seems everything is working now?

RelayShared/Services/WsControlMessage.cs

@@ -0,0 +1,34 @@
+namespace RelayShared.Services;
+
+public enum WsAction
+{
+    Authenticate,
+    RegisterKey,
+    GetServerKey,
+    GetChannels,
+    GetHistory,
+    RtcJoin,
+    RtcLeave
+}
+
+public enum WsEvent
+{
+    Authenticated,
+    KeyRegistered,
+    Error
+}
+
+public sealed class WsControlMessage
+{
+    public WsAction Action { get; set; }
+    public string? Username { get; set; }
+    public string? Token { get; set; }
+    public string? ChannelId { get; set; }
+    public string? PublicKey { get; set; }
+}
+
+public sealed class WsEventMessage
+{
+    public WsEvent Event { get; set; }
+    public string? Detail { get; set; }
+}