refactor(admin-lists): slim tenant + user grids, Stripe-style pagination

Tenant list:
- Drop the avatar/logo column — the list now shows only Tenant name
  and user count. Also drop the logo-hasLogo server lookup and the
  initials/placeholder markup.

User list (13 → 4 columns, Stripe pattern):
- User (compound: avatar + Name + email subtitle, click opens drawer)
- Tenants (badges, primary tooltip)
- Last login (relative badge)
- State (active/inactive badge)
- UUID hidden at the last column for cells[uuidIndex].data
- Everything else (departments, roles, phone, mobile, short_dial,
  created, modified) lives in the detail drawer.
- Document the off-by-one gotcha: with row selection enabled gridjs
  prepends a checkbox cell, so runtime cells[] are shifted by +1;
  uuidIndex is 5 (column position 4 + selection offset).
- New .grid-user-profile css mirrors .grid-tenant-profile (avatar +
  stacked name/email) with ellipsis and primary-color hover affordance.

Pagination (all Grid.js lists):
- Non-current page buttons now use the neutral-chip secondary-outline
  tokens (--app-button-neutral-*) plus the raised box-shadow — matches
  the rest of the button system in both light and dark themes.
- Current page stays distinctly primary-filled with the filled-shadow;
  focus-visible combines the chip shadow with the primary focus ring.
- Disabled pager buttons remain neutral but lose the lift shadow.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

pages/admin/users/index(default).phtml

@@ -117,19 +117,9 @@ $pageConfig = [
   'csrf' => $gridCsrf,
   'gridLang' => $gridLang,
   'labels' => [
-    'avatar' => t('Avatar'),
-    'firstName' => t('First name'),
-    'lastName' => t('Last name'),
-    'email' => t('Email'),
+    'user' => t('User'),
     'state' => t('State'),
     'tenants' => t('Tenants'),
-    'departments' => t('Departments'),
-    'roles' => t('Roles'),
-    'phone' => t('Phone'),
-    'mobile' => t('Mobile'),
-    'shortDial' => t('Short dial'),
-    'created' => t('Created'),
-    'modified' => t('Modified'),
     'lastLogin' => t('Last login'),
     'selectAll' => t('Select all'),
     'active' => t('Active'),