SMTP configuration is an admin concern, not a per-user setting. Removed it from the settings sidebar and relocated to /admin/smtp with a link in the admin sidebar. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Sidebar: remove footer (user info, settings, locale switcher), remove admin section, make category headers static with per-category collapse toggle - Header dropdown: replace inline admin links with single "Administrator" entry - Admin section: dedicated layout with AdminSidebar (mirrors Settings pattern) at /admin/* - Disable self-delete button in user management (backend already rejects with 403) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>