Five bugs in the same blast radius (places we render a price/percent).
DashboardClient.tsx
• Hero price read lastCandle.close (REST candle, frozen until user
changes asset/tf). WebSocket livePrices was set but never read.
Now: livePrice ?? lastCandle.close.
• "+21.84% · 4H" was (last_close - first_open) / first_open over
the entire candle window. limit=200 + tf=4H = 33 days shown as
"4H". Find candle closest to now-24h, label "24h" consistently.
ChartPanel.tsx
• Chart only re-rendered on candles prop change. Live WS ticks
ignored. Added useEffect calling series.update() with
livePrices[asset] on every tick.
analytics/page.tsx
• reduce(sum + trade.pnl_usd) when pnl_usd is null → NaN poison.
• Math.max/min over null cast to 0 → bogus "best/worst trade".
• Win-rate denominator counted null-pnl trades as losses.
• calcDrawdownPct had the same null poisoning.
Fix: gate aggregations on priced subset only.
trades/page.tsx
• ROI could divide by 0/null; entry/exit crashed on null.toLocaleString().
Added guards.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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01be8e790b