Phase 02: Subscriber and Billing Core - 5 plans in 4 waves - Wave 1: 02-01 (COA), 02-03 (Subscribers) parallel - Wave 2: 02-02 (Journal Entry Service) - Wave 3: 02-04 (Billing Engine) - Wave 4: 02-05 (Payment Tracker) - Ready for execution Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Phase 02: Subscriber and Billing Core - Implementation decisions documented - Phase boundary established Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>