- SB/CA/FD/RD Currency Step: add Nomination Facility toggle with multi-nominee form (NomineeFormComponent), auto-debit facility toggle, dormancy alert panel - SB/CA/FD/RD Preview Step: display nominees list, auto-debit status, dormancy info - FD/RD create component: validate Deposit Tenure, Monthly Installment (RD), and Customer Segment are filled before submit; show clear alert messages on missing fields - FD account details step: remove duplicate Currency section (already shown in Currency & Account Status Configuration step) - CA/SB create component: handle duplicate externalId API error with user-friendly alert instead of raw error display Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>