stabilizaiton work - projects rework for maintenanceability and ui livening

src/__Libraries/StellaOps.HybridLogicalClock.Tests/HlcTimestampTests.Now.cs

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+// <copyright file="HlcTimestampTests.Now.cs" company="StellaOps">
+// Copyright (c) StellaOps. Licensed under BUSL-1.1.
+// </copyright>
+using FluentAssertions;
+using Microsoft.Extensions.Time.Testing;
+using System;
+using Xunit;
+
+namespace StellaOps.HybridLogicalClock.Tests;
+
+public sealed partial class HlcTimestampTests
+{
+    [Fact]
+    public void Now_UsesTimeProviderAndSetsNodeId()
+    {
+        var fixedTime = new DateTimeOffset(2024, 1, 1, 0, 0, 0, TimeSpan.Zero);
+        var timeProvider = new FakeTimeProvider(fixedTime);
+
+        var timestamp = HlcTimestamp.Now("node-1", timeProvider);
+
+        timestamp.PhysicalTime.Should().Be(fixedTime.ToUnixTimeMilliseconds());
+        timestamp.NodeId.Should().Be("node-1");
+        timestamp.LogicalCounter.Should().Be(0);
+    }
+}