Version 2: turn PAPER DESK into a READ-ONLY account viewer for Papertrade (papertrade.xyz, synthetic perps on HyperEVM priced at Hyperliquid mid, BTC instrumentId 0 and ETH instrumentId 1). The user pastes any public wallet address and the terminal shows that account's activity with our indicators overlaid. Remove all trading: delete the trade ticket, order confirm dialog, close and close-all buttons, session key, wallet field, intent polling and every POST from the client. Keep the Bloomberg look, the CSP (connect-src 'self'), bundled fonts, no third-party runtime requests, and the BB(15) sigma-ladder chart, candle coloring, signal markers, declutter and indicator tests exactly as they are.

Address bar in the header: paste or type an address, validate as 0x plus 40 hex, case-insensitive, normalise to lowercase; reflect it in the URL as ?address=0x...; keep the last 10 addresses in localStorage as a dropdown with optional nicknames; Enter loads, Esc clears. Empty state explains what to paste. Unknown or empty accounts show a clear no-activity message, not an error.

New read-only backend contract (all GET, same-origin, replace src/api.ts and keep a mock mode with ?mock=1 that fakes realistic data for any address):

GET /api/markets -> [{instrumentId, symbol, mark, change24hPct, volume24hUsd}]

GET /api/candles?symbol=BTC&tf=15m&limit=1000 -> [{t,o,h,l,c,v}], tf in 1m,5m,15m,1h,4h,1d

GET /api/accounts/:address/summary -> {address, equity, pnl, paperMinted, stakingRewards, asOf}

GET /api/accounts/:address/portfolio?range=1d|1w|all -> {points:[{t, equity, pnl}]}

GET /api/accounts/:address/positions -> open positions [{positionId, symbol, isLong, marginUsd, leverage, sizeUsd, entry, mark, pnlUsd, pnlPct, bustPrice, openedAt}]

GET /api/accounts/:address/trades?cursor=&limit=75 -> {items:[{positionId, symbol, isLong, kind (Closed|Liquidated|TakeProfit|StopLoss|Opened), marginUsd, leverage, entry, exit, pnlUsd, feeUsd, paperMinted, openedAt, closedAt, txHash}], nextCursor}

GET /api/accounts/:address/cashflows?cursor=&limit=75 -> {items:[{t, kind (Deposit|Withdrawal), amountUsd, route, status, txHash}], nextCursor}

Poll positions and summary every 5s while the tab is visible, trades and cashflows every 30s, with a LIVE / STALE / ERROR indicator. Times in UTC.

Screens. F1 ACCOUNT: header strip with equity, all-time PnL, open PnL, PAPER minted, win rate, trade count, liquidation count. Large chart of the selected market with the account overlaid on the Bollinger chart: every trade as markers (long entry green up arrow below bar, short entry red down arrow above, exits as small squares, liquidations as hot pink #FF2D78 X with text LIQ), open positions as price lines (entry grey solid, bust #FF2D78 dashed when within 35% of mark), and a toggle to hide account overlays. Under the chart: open positions table and recent trades table; clicking a trade row scrolls and zooms the chart to that trade. F2 HISTORY: paginated trades and cashflows tables with filters (market, side, outcome) and CSV export. F3 ANALYSIS: equity and PnL curve (lightweight-charts line/area, range 1d/1w/all); stats computed client-side in pure tested functions in src/stats.ts: win rate, average and median PnL, best and worst trade, profit factor, average leverage, average hold time, liquidation rate, PnL by market and by side, and how each entry sat in the BB ladder at entry time (sigma bucket histogram of entries and their win rate, using the candle at openedAt from /api/candles). Add vitest coverage for stats.ts. Update README for the read-only contract and mock mode.