Implement Cadmium Payments in Expo Harvester

Cadmium Payments is the unified platform for merchant account configuration and PCI-compliant credit card transaction processing across Cadmium’s applications. It supports both Cadmium Pay (Cadmium’s own processor) and third-party processors, so every product that integrates with it uses a consistent set of payment options. This foundation supports longer-term initiatives such as expanded payment options and reporting.