Reduce tenant grid from 8 columns to 2. Remove status, theme, sso,
active/inactive users, and created columns from the list view.
All details remain accessible on the edit page.
- filter-schema: allow order by description and users only
- data endpoint: return minimal row shape (id, uuid, description,
status metadata for badge only, is_default, has_avatar, total_users)
- JS grid: 2 visible columns + hidden UUID for navigation
- CSS: add .grid-tenant-profile utility for flex avatar+name layout
Refs: TENANT-LIST-MINIMAL-001