- Add 'Mina beställningar' RouterLink to AppHeader in authenticated template
- Add Vitest tests: link visible when authenticated, hidden when not
- Add Playwright E2E test: shows orders link when authenticated
- Add Playwright E2E test: can navigate from home to orders via header link
Update AppHeader to reflect authentication state. When not authenticated,
show Logga in and Registrera links. When authenticated, show the user's
email address and a Logga ut button. Uses v-if/v-else with template blocks
for clean conditional rendering without wrapper elements.
Changes:
- authStore: add email computed that extracts sub claim from JWT payload
- AppHeader: conditional nav with v-if/v-else (guest vs authenticated)
- AppHeader: add email display and logout button with styles
- App.spec.ts: add Pinia to test setup (required by AppHeader now)
- AppHeader.spec.ts: rewrite with tests for both auth states
- authStore.spec.ts: add tests for email extraction and clearing
- header-auth.spec.ts: 5 Playwright E2E tests for header auth state
