Org name, branches, and visitors now come from DemoWorld so continuity
matches Care/Queue across the suite, plus Members for DemoWorld staff
with a frontdesk role. Also resolve organization by owner_ref when
metadata.frontdesk.organization_id is missing, and skip reseed-on-login
for DemoWorld staff emails.
Co-authored-by: Cursor <cursoragent@cursor.com>
Replace local member UUID invites with platform email invites, SSO post-auth
redirect, and provisioner-backed pending access until accept.
Co-authored-by: Cursor <cursoragent@cursor.com>