Two related client-cache improvements in nav.js:
- Day-of-fetch freshness: every cached API response is now tagged with
the viewer's local calendar day, and a cache hit requires both the TTL
AND a same-day tag. A cache stored yesterday is refetched today, so a
new day's data (and the calendar's "days shown") can't stay hidden
behind an otherwise-fresh cache across a midnight rollover.
- Cross-view prefetch now covers the Day page (api/v2/day), which it
previously never warmed, and skips any view that already has a fresh
same-day cache — so it only fetches the pages actually missing one.
Claude-Session: https://claude.ai/code/session_019VP23wKmjS2ozk1g5a9g1Z
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
