fix: add auth middleware to profile page and update visual snapshots

- Add `middleware: 'auth'` to member/profile.vue (was missing)
- Harden loginAsAdmin helper to wait for networkidle after redirect so
  auth-init plugin and admin middleware finish before tests navigate
- Regenerate visual baselines to reflect updated profile page UI

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/pages/member/profile.vue

@@ -325,6 +325,10 @@
 </template>
 
 <script setup>
+definePageMeta({
+  middleware: 'auth',
+});
+
 const { memberData, checkMemberStatus } = useAuth();
 const { openLoginModal } = useLoginModal();