super_admin is now a real LoginRole, derived from the server's
issuperadmin flag (not a client-guessable roleid) — routes exclusively
to a new minimal SuperAdminPage, never the merchant console.
That page reuses the existing tenant/store/rider onboarding wizard
(AdminConsole) rather than duplicating it — its Tenant tab was already
calling the right composite endpoint but had nowhere to send location
data, and was never actually reachable from anywhere in the app. Now
it collects a primary outlet name + business category and sends a
nested tenantlocations object, so one submit provisions tenant +
active location + admin user instead of leaving the tenant
locationless. createTenantUser also moves off the mob API base onto
the web one, matching where this is actually called from.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
