Rates Engine v0.5.0-rc.45

[v0.5.0-rc.45] — 2026-05-11

Fixed

• /v1/markets reads prices_1m instead of scanning 41M trades.
  DistinctPairs was scanning the raw trades hypertable over a
  14-day window with a HashAggregate spilling to 32 disk partitions
  — 8s+ cold-cache p99 that consistently blew the handler's 8s
  deadline. Live measurement before the fix: 86 % of /v1/markets
  requests returned 503/500 over the back half of the day, driving
  the SLO availability/latency burn pages plus the API
  error-rate/latency tickets. Rewriting the query to source from
  the prices_1m 1-min CAGG (3M rows vs 41M; pre-aggregated
  volume_usd + trade_count + last_price + sources[]) cuts
  the query from 8.4 s → 0.44 s — 19× speedup. last_trade_at
  is now bucket-rounded to the minute (within 60s of the actual
  last trade); count_24h and vol_24h_usd are byte-identical to
  the previous shape.

Explorer build

• staticPageGenerationTimeout bumped to 180 s (was the default
  60 s). Pre-rendering ~500 asset pages with 4-6 API fetches each
  hit the per-page ceiling under build-host rate-limit pressure.
  Note: not sufficient on its own — further explorer-build
  investigation underway in a follow-up.
• Explorer version surface — footer build badge + re-build-sha
  / re-build-time meta tags. Mirrors the API's /v1/version
  endpoint so an operator can confirm which build a given page
  reflects. Reads CF_PAGES_COMMIT_SHA (CF git auto-deploy) or
  GITHUB_SHA (manual workflow).