- apps/e2e/tests/login.spec.ts: 8 tests for DevLoginSelector page
- renders staff and clients sections
- shows loading state
- displays staff with role/email, clients with pet count
- clicking staff navigates to /admin with dev-user stored
- clicking client navigates to / with dev-user stored
- skip login removes dev-user and navigates to /admin
- handles empty users response
- apps/e2e/tests/impersonation.spec.ts: 8 tests for ImpersonationBanner
- banner displays when session is active
- shows reason and started time
- End Session and Audit buttons visible
- clicking End Session calls API and hides banner
- Extend button appears when time < 5 mins and not extended
- URL is cleaned when session ends
- apps/e2e/tests/fixtures.ts: added /api/dev/users mock for login tests