Update customer charging method from payment method events

Payment method attach or detach events leave billing records out of sync, producing incorrect charging instructions. Keep charging flags accurate so billing and project teams can bill correctly same day.

Overview

Manual fixes after payment method changes create billing rework and delayed project starts; keep customer charging settings aligned with attach/detach events so invoices and charges follow the intended process. This delivers accurate billing context to project and billing teams the same day, cutting manual handoffs and invoice corrections.