- LogoutButton: client component with server action calling signOut to ?signed_out=1
- AgentLayout: defense-in-depth auth() check, header with email and sign-out button
- DashboardPage: belt-and-suspenders auth() check, welcome message with agent email
- HomePage: updated to Teressa Copeland Homes placeholder (Phase 2 marketing site)
- npm run build and npx tsc --noEmit both pass with zero errors