Unit test improvements.

wolverine/a-frame-architecture/FinancialApi.Domain/Entities/BalancedJournalEntry.cs

@@ -0,0 +1,17 @@
+namespace FinancialApi.Domain.Entities;
+
+public record BalancedJournalEntry
+{
+    public Guid Id { get; init; }
+    public string Description { get; init; }
+    public DateTimeOffset CreatedAt { get; init; }
+    public List<JournalLine> Lines { get; init; } = [];
+
+    internal BalancedJournalEntry(Guid id, string description, DateTimeOffset createdAt, List<JournalLine> lines)
+    {
+        Lines = lines;
+        Id = id;
+        Description = description;
+        CreatedAt = createdAt;
+    }
+}