shared: add independent IPv4 and IPv6 collection [CI]

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

@@ -22,7 +22,9 @@ public sealed record AgentRecord(
     string? RejectedJson,
     long CreatedAtMs,
     long? LastSeenAtMs,
-    long RowVersion);
+    long RowVersion,
+    string Ipv6Host = "",
+    bool Ipv6Supported = false);
 
 /// <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
@@ -33,6 +35,8 @@ public sealed class AgentPatch
 
     public string? PublicHost { get; init; }
 
+    public string? Ipv6Host { get; init; }
+
     public bool? PublicVisible { get; init; }
 }
 
@@ -43,7 +47,8 @@ public sealed record AgentHello(
     string? LocalLimitsJson,
     byte[]? TlsSpki,
     int? ProbeTcpPort,
-    IReadOnlyList<int>? ProbeUdpPorts);
+    IReadOnlyList<int>? ProbeUdpPorts,
+    bool Ipv6Supported = false);
 
 /// <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);