backend: require confirmation for signed channel updates [CI]

backend/agent/src/MoShiro.Agent/AgentApp.cs

@@ -264,6 +264,7 @@ public sealed class AgentApp : IDisposable
     {
         var meta = new AgentHelloMeta
         {
+            Ipv6 = Ipv6Diagnostics.Sample(_ipv6Supported, Environment.GetEnvironmentVariable("MOSHIRO_NETWORK_SCOPE"), Environment.GetEnvironmentVariable("HOST_PROC")),
             Ipv6Supported = _ipv6Supported,
             Platform = MoShiro.Measurement.PlatformDetector.Detect(),
             TlsSpki = _identity.File.TlsSpki,
@@ -292,6 +293,7 @@ public sealed class AgentApp : IDisposable
         long packetsOut = _counters.PacketsOut;
         var extra = new AgentHeartbeatExtra
         {
+            Ipv6 = Ipv6Diagnostics.Sample(_ipv6Supported, Environment.GetEnvironmentVariable("MOSHIRO_NETWORK_SCOPE"), Environment.GetEnvironmentVariable("HOST_PROC")),
             Probes = [.. _hub.ConnectedProbes()],
             Sessions = _sessions.All.Count,
             PpsIn = _lastAtMs == 0 ? 0 : (packetsIn - _lastIn) / seconds,