Update: Channel Based VC (Same Issues)

RelayServer/Models/SocketRtcSignalMessage.cs

@@ -4,7 +4,7 @@ public class SocketRtcSignalMessage
 {
     public required string Type { get; set; } // encrypted_rtc_signal
     public required string SenderUsername { get; set; }
-    public required string RecipientUsername { get; set; }
+    public required string ChannelId { get; set; }
 
     public required string CipherText { get; set; }
     public required string Nonce { get; set; }