The 1,156 accepted acks were burying the 5 rejections — the operator
had to scroll the whole table to find them. Two changes:
1. Sidebar '999 ACKs' nav item gets a warning-toned badge showing
the total rejected segment count from aggregates.rejected_count
(mirrors the Reconciliation unmatched badge pattern). One number,
visible from any page.
2. Acks page table now sorts rejected rows to the top, then
newest-id-first. All 5 rejections fit on page 1 since they're a
tiny fraction of the total — no pagination needed.
New files:
- src/hooks/useAckStats.ts (lightweight aggregates-only fetch)
- src/hooks/useAckStats.test.tsx (2 tests)
- src/components/Sidebar.test.tsx (3 tests)
Pre-existing baseline: 10 frontend failures (api.test.ts exportBatch837,
tail-stream.test.ts acks/ta1_acks targeting, Inbox/InboxHeader copy).
Unchanged.
Nora