Wires the previously-dead 'New tenant' button on /tenants to a modal
that collects slug + name + plan + optional primary domain, POSTs to
the existing platform-api /tenants endpoint via a new operator proxy,
and navigates into the freshly-created tenant detail page. Slug
auto-derives from the name until the operator types in the slug field
themselves. Billing details and provisioning are still done from the
tenant detail page after creation — this modal is the minimum that
backend validators will accept.
Ronni Baslund
be430179d9