Add license and tax details to customer profile

Checkout payments arrive without tax IDs or license metadata, forcing manual billing delays. This adds tax, address, and license duration to customer records so billing can invoice same day.

Overview

When purchases don't populate tax IDs or license-period metadata, billing and fulfillment become manual and slow. This flow writes tax, address, and license details into customer profiles at purchase so billing staff can invoice and fulfill licenses the same day.