Add fileserver context and map controls

src/OCSentinelCli/Models.cs

@@ -126,6 +126,19 @@ internal sealed record RansomwareBetaSummary
     public int LookbackMinutes { get; init; }
 
     public List<RansomwareSignal> Signals { get; init; } = [];
+
+    public List<RansomwareSmbSession> SmbSessions { get; init; } = [];
+}
+
+internal sealed record RansomwareSmbSession
+{
+    public string ClientComputerName { get; init; } = string.Empty;
+
+    public string ClientUserName { get; init; } = string.Empty;
+
+    public long SessionId { get; init; }
+
+    public long OpenFileCount { get; init; }
 }
 
 internal sealed record RansomwareSignal