Replace the entity slugs on organizations, workspaces, resource pools,
and
plan ladders with nullable `key` columns and add keys to products,
prices,
and entitlement sets. Rename `providers.slug` to `provider` and add
partial
unique indexes for system and org role names.
Assign invoice numbers per billing account from a gapless transactional
counter; Stripe's number moves to the invoice mapping as an external
reference.
Seeds, fixtures, and the operator lookup address rows by key, and the
returning-login resync no longer blanks a display name when the IdP
sends
no `name` claim.
Implement the ux-first-run change: a state-derived setup checklist on
/operator/setup with a landing region that recedes once required steps
are done, and empty states that distinguish blocked from empty across
operator and member surfaces. Also add production deployment and
environment reference docs, plus a config-key completeness test.