feat(p7-02): fill opts_test.go stubs — ServerOptionsTests

Write 3 unit tests portable without a running server:
- ListenMonitoringDefault (T:2524): SetBaselineOptions propagates Host → HttpHost
- GetStorageSize (T:2576): StorageSizeJsonConverter.Parse K/M/G/T suffixes
- ClusterNameAndGatewayNameConflict (T:2571): ValidateOptions returns ErrClusterNameConfigConflict

Mark 74 opts_test.go stubs deferred: tests require either the NATS
conf-format parser (not yet ported), a running server (RunServer/NewServer),
or CLI flag-parsing infrastructure (ConfigureOptions).

Fix StorageSizeJsonConverter.Parse to return 0 for empty input,
matching Go getStorageSize("") == (0, nil).

Total unit tests: 638 passing.

dotnet/src/ZB.MOM.NatsNet.Server/Config/NatsJsonConverters.cs

@@ -152,6 +152,8 @@ public sealed class StorageSizeJsonConverter : JsonConverter<long>
 
     public static long Parse(string s)
     {
+        // Mirrors Go getStorageSize: empty string returns 0 with no error.
+        if (string.IsNullOrWhiteSpace(s)) return 0;
         if (long.TryParse(s, out var n)) return n;
         var m = Pattern.Match(s.Trim());
         if (!m.Success) throw new FormatException($"Invalid storage size: \"{s}\"");

dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ServerOptionsTests.cs

@@ -3,6 +3,7 @@
 
 using Shouldly;
 using ZB.MOM.NatsNet.Server;
+using ZB.MOM.NatsNet.Server.Config;
 
 namespace ZB.MOM.NatsNet.Server.Tests;
 
@@ -330,4 +331,54 @@ public class ServerOptionsTests
         var r2 = ServerOptions.MergeOptions(null, flagOpts);
         r2.Port.ShouldBe(5678);
     }
+
+    /// <summary>
+    /// Mirrors TestListenMonitoringDefault — when Host is set without HTTPHost,
+    /// SetBaselineOptions should copy Host to HTTPHost.
+    /// </summary>
+    [Fact] // T:2524
+    public void ListenMonitoringDefault_ShouldSetHttpHostToHost()
+    {
+        var opts = new ServerOptions { Host = "10.0.1.22" };
+        opts.SetBaselineOptions();
+
+        opts.Host.ShouldBe("10.0.1.22");
+        opts.HttpHost.ShouldBe("10.0.1.22");
+        opts.Port.ShouldBe(ServerConstants.DefaultPort);
+    }
+
+    /// <summary>
+    /// Mirrors TestGetStorageSize — StorageSizeJsonConverter.Parse converts K/M/G/T suffixes
+    /// and returns 0 for empty input; invalid suffixes throw.
+    /// </summary>
+    [Fact] // T:2576
+    public void GetStorageSize_ShouldParseSuffixes()
+    {
+        StorageSizeJsonConverter.Parse("1K").ShouldBe(1024L);
+        StorageSizeJsonConverter.Parse("1M").ShouldBe(1048576L);
+        StorageSizeJsonConverter.Parse("1G").ShouldBe(1073741824L);
+        StorageSizeJsonConverter.Parse("1T").ShouldBe(1099511627776L);
+        StorageSizeJsonConverter.Parse("").ShouldBe(0L);
+
+        Should.Throw<FormatException>(() => StorageSizeJsonConverter.Parse("1L"));
+        Should.Throw<FormatException>(() => StorageSizeJsonConverter.Parse("TT"));
+    }
+
+    /// <summary>
+    /// Mirrors TestClusterNameAndGatewayNameConflict — when Cluster.Name != Gateway.Name,
+    /// ValidateOptions should return ErrClusterNameConfigConflict.
+    /// </summary>
+    [Fact] // T:2571
+    public void ClusterNameAndGatewayNameConflict_ShouldReturnConflictError()
+    {
+        var opts = new ServerOptions
+        {
+            Cluster = new ClusterOpts { Name = "A", Port = -1 },
+            Gateway = new GatewayOpts { Name = "B", Port = -1 },
+        };
+
+        var err = NatsServer.ValidateOptions(opts);
+        err.ShouldNotBeNull();
+        err.ShouldBe(ServerErrors.ErrClusterNameConfigConflict);
+    }
 }

reports/current.md

@@ -1,6 +1,6 @@
 # NATS .NET Porting Status Report
 
-Generated: 2026-02-26 23:53:55 UTC
+Generated: 2026-02-27 00:00:19 UTC
 
 ## Modules (12 total)
 
@@ -21,10 +21,11 @@ Generated: 2026-02-26 23:53:55 UTC
 
 | Status | Count |
 |--------|-------|
-| complete | 205 |
+| complete | 208 |
+| deferred | 74 |
 | n_a | 187 |
 | not_started | 2527 |
-| stub | 224 |
+| stub | 147 |
 | verified | 114 |
 
 ## Library Mappings (36 total)
@@ -36,4 +37,4 @@ Generated: 2026-02-26 23:53:55 UTC
 
 ## Overall Progress
 
-**4190/6942 items complete (60.4%)**
+**4193/6942 items complete (60.4%)**

reports/report_8b63a6f.md

@@ -0,0 +1,40 @@
+# NATS .NET Porting Status Report
+
+Generated: 2026-02-27 00:00:19 UTC
+
+## Modules (12 total)
+
+| Status | Count |
+|--------|-------|
+| not_started | 1 |
+| verified | 11 |
+
+## Features (3673 total)
+
+| Status | Count |
+|--------|-------|
+| complete | 3368 |
+| n_a | 26 |
+| verified | 279 |
+
+## Unit Tests (3257 total)
+
+| Status | Count |
+|--------|-------|
+| complete | 208 |
+| deferred | 74 |
+| n_a | 187 |
+| not_started | 2527 |
+| stub | 147 |
+| verified | 114 |
+
+## Library Mappings (36 total)
+
+| Status | Count |
+|--------|-------|
+| mapped | 36 |
+
+
+## Overall Progress
+
+**4193/6942 items complete (60.4%)**