backend: require confirmation for signed channel updates [CI]

backend/src/MoShiro.Backend.Application/Models/AgentModels.cs

@@ -24,7 +24,8 @@ public sealed record AgentRecord(
     long? LastSeenAtMs,
     long RowVersion,
     string Ipv6Host = "",
-    bool Ipv6Supported = false);
+    bool Ipv6Supported = false,
+    string? Ipv6DiagnosticsJson = null);
 
 /// <summary>管理员可以修改的字段（merge-patch 语义：为 null 的字段不改）。</summary>
 public sealed class AgentPatch
@@ -48,7 +49,8 @@ public sealed record AgentHello(
     byte[]? TlsSpki,
     int? ProbeTcpPort,
     IReadOnlyList<int>? ProbeUdpPorts,
-    bool Ipv6Supported = false);
+    bool Ipv6Supported = false,
+    string? Ipv6DiagnosticsJson = null);
 
 /// <summary>注册之后 MoShiro 的补充：公开地址和端口。</summary>
 public sealed record AgentEnrollment(string PublicHost, int ProbeTcpPort, IReadOnlyList<int> ProbeUdpPorts, IReadOnlyList<string> Kinds);
@@ -64,4 +66,4 @@ public sealed record JoinTokenInfo(
     long? RevokedAtMs,
     long CreatedAtMs);
 
-public sealed record ProbeRecord(string Id, string Name, byte[] PublicKey, long CreatedAtMs, long? RevokedAtMs);
+public sealed record ProbeRecord(string Id, string Name, byte[] PublicKey, long CreatedAtMs, long? RevokedAtMs, string? Ipv6DiagnosticsJson = null);