DCQL: multiple instances of one credential (bank statements)

Scenario

A loan provider assesses an application and needs six recent BankStatement credentials. multiple: true lets the wallet return several instances of the same credential type in one presentation.

Before you build: run the integrator intake in igrantio-ows-overview - environment, API key, tenancy, backend host, webhooks, frontend - one question at a time, a recommended default with each.