Add research on PCI/tokenized payment references vs login Credentials (Payment
Instrument Reference, Payment Mandate) and CRM Opportunity promotion thresholds
(Pipeline Pursuit, binding_trigger). Resolve OpenQuestions for both topics.
Update glossary, conceptual model, terminology, and downstream recommendations.
Record B2B SaaS subscriber tenancy and Stripe billing source notes. Resolve
the Customer Account open question: reject it as canonical, add Commercial
Record and Commercial Relationship to the Record and relationship layers, and
document Subscriber as a convenience term only.