Login screen: document user_self_signup gate for the sign-up link (Task #1050)
docs(#1047): login wiki - reveal/fallback contract + a11y row, refreshed screenshots
docs(#1047): login wiki page - demoMode notice section + screenshots
auth/login: absolute sign-up/lost-password hrefs (Refs #1338) — wiki docs + screenshot
Login/Logout screen modernization (Refs #775) — wiki doc + screenshots