Unit test improvements.

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

@@ -1,4 +1,6 @@
-namespace FinancialApi.Domain.Entities;
+using FinancialApi.Domain.Exceptions;
+
+namespace FinancialApi.Domain.Entities;
 
 public enum AccountType
 {

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

@@ -1,15 +1,13 @@
 namespace FinancialApi.Domain.Entities;
 
-public record JournalEntry
+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 JournalEntry() { }
-
-    internal JournalEntry(Guid id, string description, DateTimeOffset createdAt, List<JournalLine> lines)
+    internal BalancedJournalEntry(Guid id, string description, DateTimeOffset createdAt, List<JournalLine> lines)
     {
         Lines = lines;
         Id = id;

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

@@ -1,3 +0,0 @@
-namespace FinancialApi.Domain.Entities;
-
-public class InsufficientFundsException(string message) : Exception(message);

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

@@ -1,3 +0,0 @@
-namespace FinancialApi.Domain.Entities;
-
-public class InvalidStartingBalanceException(string message) : Exception(message);