feat: execute full-repo remaining parity closure plan

src/NATS.Server/Configuration/ClusterOptions.cs

@@ -7,4 +7,6 @@ public sealed class ClusterOptions
     public int Port { get; set; } = 6222;
     public int PoolSize { get; set; } = 3;
     public List<string> Routes { get; set; } = [];
+    public List<string> Accounts { get; set; } = [];
+    public RouteCompression Compression { get; set; } = RouteCompression.None;
 }

src/NATS.Server/Configuration/RouteCompression.cs

@@ -0,0 +1,7 @@
+namespace NATS.Server.Configuration;
+
+public enum RouteCompression
+{
+    None = 0,
+    S2 = 1,
+}