feat(api): support passing and persistenting currency code for balances

src/FiscalOS.API/Accounts/Add/Endpoint.cs

@@ -42,12 +42,9 @@ internal static class Endpoint
       return Results.Conflict();
     }
 
-    // TODO: We need to get the initial balance
-    // of the account
-
     var accountMetadata = PlaidAccountMetadata.From(request.PlaidAccountId, request.PlaidAccountName);
     var account = Account.From(user.Institutions.First().Id, request.PlaidAccountName, accountMetadata);
-    var balance = Balance.From(request.AccountCurrentBalance, request.AccountAvailableBalance);
+    var balance = Balance.From(request.AccountCurrentBalance, request.AccountAvailableBalance, request.AccountCurrencyCode);
 
     account.AddBalance(balance);
     user.AddAccount(account);

src/FiscalOS.API/Accounts/Add/Request.cs

@@ -7,6 +7,7 @@ public record Request : IValidatableObject
   public string PlaidAccountName { get; init; } = string.Empty;
   public decimal AccountCurrentBalance { get; init; }
   public decimal AccountAvailableBalance { get; init; }
+  public string AccountCurrencyCode { get; init; } = string.Empty;
 
   public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
   {
@@ -27,5 +28,11 @@ public record Request : IValidatableObject
       var fieldName = nameof(PlaidAccountName);
       yield return new($"The {fieldName} field is required.", [fieldName]);
     }
+
+    if (string.IsNullOrWhiteSpace(AccountCurrencyCode))
+    {
+      var fieldName = nameof(AccountCurrencyCode);
+      yield return new($"The {fieldName} field is required.", [fieldName]);
+    }
   }
 }