fix(perf,a11y): selectAtom for unread subscriptions, semantic headings, Perf-5 binary search

Perf-3: Replace raw roomToUnreadAtom subscription in Home, Direct, Space with selectAtom-derived Set<string> — components now only re-render when rooms gain/lose unread presence, not on every notification count update Perf-5: RoomTimeline eventRenderer now uses binary search on precomputed timelineSegments instead of O(N×T) linear scan per visible message A11y L-1: Add as=h2 semantic heading to Home, Direct, Inbox, Space page nav titles so screen readers announce page sections correctly Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-20 21:59:09 -04:00
parent 4e80c0a0f5
commit 18b12cfca1
4 changed files with 71 additions and 13 deletions
@@ -52,7 +52,7 @@ export function Inbox() {
      <PageNavHeader>
        <Box grow="Yes" gap="300">
          <Box grow="Yes">
-            <Text size="H4" truncate>
+            <Text as="h2" size="H4" truncate>
              Inbox
            </Text>
          </Box>