## FRONTEND: Implement User Settings Page UI

[OSEH-svg]

Description
There is a design spec for the account settings page (#252) but no implementation. Build the settings page UI with sections for profile info, notification preferences, and payment settings.

Tasks

• Create apps/web/app/settings/page.tsx.
• Add tabs or sections: Profile, Notifications, Payment.
• Profile section: display name, avatar upload, bio.
• Notifications section: toggles for email and in-app notifications.
• Wire up to PATCH /api/v1/profile once available.
  Acceptance Criteria
• Settings page is accessible at /settings.
• All sections render correctly on desktop and mobile.
• Unsaved changes prompt the user before navigating away.
  Dependencies
• Depends on: [Design] Account Settings Page #252 (design spec)