- LoginScreen (credentialed, now the default entry point) with links to legacy pilot entry
and forgot-password; SetPasswordScreen (shared activate/reset UI, driven by
?activate=/?reset= query params — no router library, matching this app's existing
state-machine-per-shell convention); ForgotPasswordScreen (anti-enumeration, dev-only
reset-token surface).
- ClassroomTab: LIVE NOW banner, join, heartbeat only while joined and the tab is mounted,
guidance-only current-activity link, own Lab status/launch (reuses the My Learning tab's
exact API), announcements, Need Help form. No chat, no video, no shell access.
- ProfileTab: identity, cohort, progress, achievements, active-session count,
change-password (gated on has_credentials).
- PlatformShell rewritten as an explicit view state machine; StudentDashboard gained the new
tabs; api.js/Platform.module.css extended to match.
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