- Update selectors to use input indices instead of labels (labels not associated)
- Fix validation error status expectation (400 instead of 422)
- Update exchange.spec.ts to check new config fields (eur_min_buy, etc.)
- Test admin can access pricing page and view current configuration
- Test admin can update pricing configuration with confirmation
- Test form validation prevents invalid values
- Test regular users cannot access pricing page
- Test API permissions (admin can access, regular user cannot)
- Test API validation works correctly