The profile pill in the top nav was a static `<div>` showing the
avatar + name + role with no way to reach the dashboard, profile
or logout from the desktop layout — testers reported "không có
dropdown dashboard" after login.
Changes to `components/design-system/navbar.tsx`:
* The pill is now a `<button>` that toggles an absolutely-positioned
menu (right-aligned, `z-popover`, elevation-3 shadow). A chevron
rotates to indicate state.
* Outside-click and Escape close the menu (effect listens only while
the menu is open).
* The menu has:
- A header card with the bigger avatar + full name + email/phone.
- Dashboard / Admin entry (icon depends on role) — replaces the
separate green dashboard button that used to live to the right
of the pill.
- Profile entry → `profileHref`.
- Divider, then a destructive "Đăng xuất" button calling `onLogout`.
* Each link uses the existing `renderLink` slot so framework-specific
Link components (Next.js / next-intl) keep working, and they close
the menu on click.
Tests updated: the dashboard / admin assertions now click the
trigger to open the menu, then look for `role="menuitem"` entries.
All 16 navbar tests pass.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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