Four items from the design-plan audit, all flagged as locked-design or
Codex corrections, shipped together so the GTM demo path covers them
end-to-end before bug bash.
1. Live AI assessment refresh on the magic-moment screen. Backend already
publishes handoff_assessment_ready when enrich_escalation_async commits;
wire the frontend listener so the senior sees the assessment populate
without a manual reopen. New event type + onAssessmentReady handler on
streamEscalations; AssistantChatPage opens a scoped SSE subscription
whenever it tracks a handoff missing its assessment, refetches on match,
and replaces magicHandoff / overlayHandoff in place. Closes the loop on
the async-assessment commit e8ba74e.
2. Suggested-step chips below the chat input. Locked design from the plan
(Codex correction). Chip strip renders above the composer post-claim
when ai_assessment_data.suggested_steps[] is non-empty. Click prefills
the input and focuses; first send or explicit X hides for the session.
3. Unread 6px dot on EscalationQueue cards. localStorage-persisted seen
set (rf-escalation-seen, capped 200). Dot top-right when not seen.
Cleared on open (card click) or claim (Pick Up) — NOT on hover, per
Codex correction. Pick Up stops propagation so it doesn't double-fire.
4. Race-condition toast on claim conflict. The /claim endpoint previously
silently overwrote claimed_by — both seniors thought they owned the
session. New HandoffAlreadyClaimedError carries the winner's id/name/
timestamp; claim_session rejects different-user re-claims (same-user is
idempotent for double-click safety); endpoint returns 409 with
structured detail. AssistantChatPage.handleStartHere extracts and
surfaces "Already claimed by {name} {time_ago}." via toast, drops
?pickup=true, dismisses magic-moment so the loser flows back to queue.
Tests: 2 new unit tests in test_handoff_manager.py (conflict raises,
same-user idempotent). Full handoff + escalation suite (34 tests) green.
Frontend tsc -b clean.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>