Merge pull request #100 from FacturAPI/chore/cartaporte_constants

chore(constantsCC): add cartaporte and comercioext constants

Author: raul-facturapi

CHANGELOG.md

@@ -5,6 +5,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [4.16.0] 2026-04-23
+### Added
+- Add new export catalogs for customs regimes, transport keys, SCT permits, COFEPRIS sectors, pharmaceutical forms, special transport conditions, customs documents, transport types, transport figures, ISTMO registry, loading keys, maritime configurations, rail traffic, containers, rail cars, rail service types, transfer reasons, incoterms, and customs units.
+- Expose the new enums on the `Facturapi` class as static getters for namespace-style access.
+
 ## [4.15.0] 2026-04-13
 ### Added
 - Add `organizations.updateDefaultSeries` to set an organization default series by type.