Returns the current escrow wallet for the authenticated application including:
balance – net position (credits − debits for all completed transactions)totalDebited – running sum of all outgoing accepted paymentstotalCredited – running sum of all incoming accepted paymentsThe wallet is auto-provisioned on the first transaction so calling this endpoint
before any transaction is initiated will return a 404 until the wallet exists.
Call POST /v1/wallet to provision it eagerly.