Enhanced Import Amount Type Selection (#506)

* Enhanced Import Amount Type Selection

updated version of https://github.com/we-promise/sure/pull/179

* copilot sugestions

* ai sugestions

* Update import.rb

* Update schema.rb

* Update schema.rb

* Update schema.rb

---------

Signed-off-by: Juan José Mata <juanjo.mata@gmail.com>
Co-authored-by: Juan José Mata <juanjo.mata@gmail.com>

test/models/transaction_import_test.rb

@@ -85,7 +85,8 @@ class TransactionImportTest < ActiveSupport::TestCase
       date_format: "%m/%d/%Y",
       amount_col_label: "amount",
       entity_type_col_label: "amount_type",
-      amount_type_inflow_value: "debit",
+      amount_type_identifier_value: "debit",
+      amount_type_inflow_value: "inflows_positive",
       amount_type_strategy: "custom_column",
       signage_convention: nil # Explicitly set to nil to prove this is not needed
     )