Changelog

browser-direct live mark prices and calmer client polling

• a module-singleton WebSocket to Binance's public mark-price firehose feeds
• flagship polls dropped to 60s against the faster CDN windows, /global
• W5 mop-up: /global, heatmap, narratives, ecosystems, memecoins reads
• Playwright specs pin the contracts: static logos with zero proxy hits, the
• rider fixes: CORS conditional-request test, cron lock steal timeout, the

5-minute ingest, coin-level mark prices, and the freshness contract sweep

• funding rates now refresh every 5 minutes (was 30) and futures every 10;
• every funding row carries a coin-level mark_price from Binance's
• every developer-facing 30-minute freshness claim was swept in the same
• settlement detection pre-filters against the last stored settlement per

serve the book from write-time snapshots with ETag/304 and a coins index

• The funding cron serializes the base book to private storage once per run;
• The crypto global-overview tab is precomposed into a snapshot table.
• New /api/funding/coins (+ v1 twin) feeds the coin picker, so the coin page
• Reads tolerate a not-yet-migrated database via a 42703 legacy-column

move the shared response cache to Vercel Runtime Cache and retire Upstash

• shared-response-cache.ts backend is now getCache() from @vercel/functions:
• Public + token-scanner rate limiting moved to a new text-keyed Supabase
• Token-scanner boost/momentum ZSETs became pruned JSON series behind the

stop the Upstash client bailing static pages out to dynamic