- New admin root + child layouts with daisyUI drawer sidebar
- AdminLayoutHook tracks current path for active nav highlighting
- Split router into :admin, :admin_theme, :user_settings live_sessions
- Theme editor stays full-screen with back link to admin
- Admin bar on shop pages for logged-in users (mount_current_scope)
- Strip Layouts.app wrapper from admin LiveViews
- Remove nav from root.html.heex (now only serves auth pages)
- 9 new layout tests covering sidebar, active state, theme editor, admin bar
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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