Create loanDescription: one loan per application. This is the ledger loan, not the payout.Usage: status accepted and youCanNow includes create_loan (after mock e-NACH is active).Details: optional { loanId } (server generates otherwise). 201{ loan: { id, status } }. Captures loanId.Next:POST /application/request-payout with that loanId, then ops dispatch-due.Auth:Authorization: Bearer {{accessToken}}Errors:401 unauthorized | session_expired · 409 Revision conflict or step_not_ready