- Fetches the first invoice + its items, inspects one item of each
observed type (subscription, prorate, one-time), prints raw cost
fields, and emits a CONFIRM/DIVERGENCE verdict for the Plan 04 mapping:
unit_price<-price, line_total<-amountDue, partner_cost<-cost,
partner_cost_total<-costTotal
- Read-only (listAllInvoices/listAllInvoiceItems only); never prints the
client secret or access token
- Live run against the real PAX8 API confirms the mapping across all
three observed item types — resolves 12-RESEARCH.md Open Question 1
