Initialize CBDD solution and add a .NET-focused gitignore for generated artifacts.

tests/CBDD.Tests/ValueObjectIdTests.cs

@@ -0,0 +1,44 @@
+using ZB.MOM.WW.CBDD.Bson;
+using ZB.MOM.WW.CBDD.Core;
+using ZB.MOM.WW.CBDD.Core.Collections;
+using ZB.MOM.WW.CBDD.Core.Metadata;
+using ZB.MOM.WW.CBDD.Shared;
+using Xunit;
+
+namespace ZB.MOM.WW.CBDD.Tests;
+
+public class ValueObjectIdTests : IDisposable
+{
+    private readonly string _dbPath = "value_object_ids.db";
+    private readonly Shared.TestDbContext _db;
+
+    public ValueObjectIdTests()
+    {
+        if (File.Exists(_dbPath)) File.Delete(_dbPath);
+        _db = new Shared.TestDbContext(_dbPath);
+    }
+
+    [Fact]
+    public void Should_Support_ValueObject_Id_Conversion()
+    {
+        var order = new Order
+        {
+            Id = new OrderId("ORD-123"),
+            CustomerName = "John Doe"
+        };
+
+        _db.Orders.Insert(order);
+
+        var retrieved = _db.Orders.FindById(new OrderId("ORD-123"));
+
+        retrieved.ShouldNotBeNull();
+        retrieved.Id.Value.ShouldBe("ORD-123");
+        retrieved.CustomerName.ShouldBe("John Doe");
+    }
+
+    public void Dispose()
+    {
+        _db.Dispose();
+        if (File.Exists(_dbPath)) File.Delete(_dbPath);
+    }
+}