Futures Screener

Статус: ✅ Production Прод: https://screen.clkway.online (Malaysia VPS 72.62.247.119) Дев: /home/app/futures-screener/ (основной сервер, git master) Ops/Deploy/SSH: см. .claude/skills/futures-screener/SKILL.md

Stack

• Fastify (Node.js 22), Vanilla JS SPA (modular: densities.js + mini-charts.js)
• LightweightCharts 5.1.0 (TradingView) — мигрировано из v4.1.1 (сессия 49)
• lightweight-charts-drawing 0.1.1 (68 drawing tools, UMD via Fastify route) — ✅ полная интеграция: click-to-create, drag, settings popup, alerts, fib custom levels
• Dark terminal UI (CSS variables, no glassmorphism gradient)
• Binance Futures API через Fastify proxy (multi-layer cache)
• Live WebSocket: browser→Binance /market/stream kline (видимые графики тикают в реалтайме, kill+recreate on TF switch)

Server Cache Architecture (17 Apr, updated 24 Apr)

• Client 3-tier cache (24 Apr): Memory dataCache (0ms) → IndexedDB FuturesScreenerKlines (5-20ms) → Server batch. Delta fetch for stale IDB (>5min). Infinite scroll up to 20K candles.
• Klines cache: latest 10s, historical (endTime) 5min, pre-warm top 200×3TF on startup
• Density cache: memory 60s TTL + disk data/density-cache.json (survives restarts, 10min max)
• Klines stats cache: 60s per symbol (NATR + vol for density scoring), 5min eviction cleanup
• Startup warmup: density WS subscriptions (10/batch, 20s pause) → klines pre-warm (200×3TF, 150ms throttle) → NATR warmup (inject /api/natr?interval=15m at 5s, ready ~13s)
• Static assets: Cache-Control: max-age=86400 (1 day, cache-buster ?v=), gzip via nginx (446KB→97KB, -78%)
• Fetch timeout: 15s (was 10s — caused abort cascades on heavy endpoints)
• Mini-charts batch: debounced IntersectionObserver → batch 20 symbols + batch density in 1 request

UI Tabs

1. Mini-Charts (DEFAULT, v4) — full market screener, IntersectionObserver, live WS, 2-phase load, coin modal, volume bars, drawing tools, search, color flags
2. Densities (V2, 20 Apr) — statistical wall detection (adaptive buckets 0.05%, median+Nσ threshold), cluster merging, bid/ask imbalance, persistence tracking (fuzzy bucket-index ±2, disk persistence every 30s survives restarts), wall scoring (sizeVsMedian×proximity×persistence). Filters: Age≥ slider (0-15m, anti-spoof), Erosion≥ slider (0-60m, time to eat wall = notional×5/avgVol5m). Erosion column with color coding. Table: Coin/Imbalance/Support/Resistance/Vol24h. Blacklist modal. Density toggle on mini-charts. On-demand WS subscription for specific symbols. server/densityV2.js.
3. Signals — live signals scanner (volume_spike SMA20-based, oi_cvd, oi_divergence, oi_funding_squeeze, liq_sweep pin bar), hybrid table + detail panel, ⚙️ accordion settings (General/Volume Spike/OI+CVD/OI Divergence/Funding Squeeze/Liq Sweep/Notifications), signal markers on chart (toggle + always-on in Signals tab modals), 30s auto-refresh. Local timezone. Multi-select type filter (checkboxes, localStorage persist, client-side only — single source of truth). Marker sync (refreshSignalMarkers on type filter change + data reload). Enriched metadata: volume24h, NATR, trades24h, fundingRate, pricePosition, marketRank. OI signals v3 (30 Apr): market regime (BTC EMA20), CVD gate, divergence detection, 60min cooldown + OI ROC 3-candle acceleration (±5 conf) + funding gate (skip longs when funding >+0.03%, shorts <-0.02%) + oi_divergence standalone (price/OI trend divergence over 4+ candles) + oi_funding_squeeze contrarian (OI spike + extreme funding). OI history 6 candles. Liq Sweep (1 May, quality overhaul): fractal swing levels only (5/3 bars), pin bar detection (wick≥60%, body≤33%), sweep confirmation. Confidence 30-95 scoring: base 35 + wick 0-15 + level 0-15 + volume 0-12 + OI drop 0-8 + trend 0-10 + funding 0-5 + wall 0-5. Volume gate ≥5x (hard filter). OI drop 5min history (confirms liquidations). Trend context counter-trend +10 / with-trend +2 (BTC EMA20). Funding context extreme +5 (sweep against overcrowded side). Debug funnel log. ~15-30 signals/day (was 144). server/liq-sweep.js. Sort Sig button in toolbar (alongside Sort S/R, Sort TL) with active glow.

Channel Overlays (2 May) ✅

• Keltner 🟠: EMA(20) ± ATR(10)×1.5 — volatility bands, mean-reversion
• Regression 🔵: auto-period (R²×log(len), scans 20-200), ±2σ bands — наклонный тренд-канал
• Dropdown "Channels ▾" в тулбаре, per-type checkboxes, localStorage persist
• Работает на mini-charts + modal + multi-chart slots
• Parallel/Gaussian/Donchian были реализованы но удалены (Rick: "regression — вот что хотел")
• Ресёрч: brain/resources/trend-channels-research.md

Channel Signals v2 (3 May) ✅

• server/channel-signal.js — regression channel signal detector, multi-TF
• 3 sub-types: channel_bounce (with-trend reversion), channel_reversal (counter-trend breakout), channel_acceleration (with-trend breakout)
• Multi-TF: 5m(60s), 15m(90s), 1h(300s) — independent scans, confluence ★★/★★★
• Trend-aware: ascending→LONG from lower, descending→SHORT from upper, flat→bounce both sides
• Touch count tracking (2nd/3rd +conf, 4th+ −bounce/+breakout)
• Quality filters: Volume ≥$30M, NATR ≥0.5%, R² ≥0.65, bandwidth ≥0.5%
• VOL_GATE_REVERSAL lowered to 2.0 (was 3.0) — reversals now fire on 5m/15m
• Period list synced with chart overlay: [20,30,50,75,100,150,200], 220 klines
• BTC trend alignment, wick rejection, penetration boost
• Settings: per-TF toggle checkboxes (5m/15m/1h), push TF filter
• UI: sub-type+TF in signal list (↩️ Bounce 5M / 🔄 Reversal 15M / 🚀 Accel 1H)
• Full metadata in detail panel (pattern, slope, R², period, band width, touch count, channel range)
• Empty summary badges fix (filter types with count > 0)
• Коммиты 0824a89→ea04b26

Push Signal Marker Fix (3 May) ✅

• _pendingSignalMarker never consumed → now injected as synthetic signal in applySignalMarkers()
• sigState undefined early return → fallback to empty array, pending marker still works
• modal._markers → modal._sigMarkers variable name fix in closeCoinModal()
• Force flag set when _pendingSignalMarker exists (bypasses settings check)
• Коммит 1330a43

Chart Load Speed (2 May) ✅

• Delayed destroy 5s grace period on scroll-out (cancel on scroll-back) — kills jerkiness
• shiftVisibleRangeOnNewBar: true — native LWC auto-scroll, replaces manual viewport hacks
• requestAnimationFrame overlays — S/R, trendlines, channels, markers deferred to next frame
• Infinite scroll viewport preservation — prepend count shift
• Debounced ResizeObserver — modal resize 100ms
• Server: Stale-While-Revalidate — klines cache 60s→300s, stale returns instant + bg refresh
• Server: NATR auto-refresh every 4.5min (before 5min TTL)
• Коммит cdef26e

Modal UX (2 May) ✅

• Loading spinner: пересоздаётся после innerHTML='', видимый при каждом fetch
• Error state + Retry кнопка: HTTP/network ошибки → UI вместо чёрного экрана
• Prefetch BTC/ETH/SOL: fire-and-forget при загрузке → серверный кэш тёплый
• Коммит 37bfd81

OI Indicator (19 Apr)

• /api/oi-history endpoint (Binance /futures/data/openInterestHist, cached 1min)
• White line in bottom pane (10% chart height, separate oi price scale)
• Works on ALL charts: modal, multi-chart slots, mini-charts (throttled batch)
• Toggle + color picker in Settings → Indicators section
• TF auto-maps to nearest supported OI period (5m/15m/30m/1h/2h/4h/1d)

Drawing Tools (v5, Apr 10)

• Vertical toolbar — слева на графике (SVG иконки), как в TradingView
• Horizontal Line (H), Horizontal Ray (R), Trendline (T), Fibonacci (F), Rectangle (B), Ruler (M)
• Keyboard shortcuts, live preview canvas, Delete = clear all
• Ruler (M): 2-click measurement, diagonal + L-shape + fill, label (price/% + time + bars), green/red, follows scroll/zoom, dismiss on click
• Ruler legacy: Shift+Drag quick ruler (also works)
• Interactive: select, drag (hline + ray), color change, lock, delete
• Persist: localStorage per-symbol, restore on modal open
• Mini-chart sync: рисунки отображаются на мини-чартах (hlines, rays, trendlines, fibs)
• drawCtx refactor: universal drawing context (modal/slot/mini), ~120 replacements, auto-switch on mousedown
• All charts drawable: modal (32px toolbar), slots (24px compact), mini (20px, hover reveal)

Push Notifications (20 Apr — Server Web Push v2)

• Server-side Web Push (VAPID) — works even when browser fully closed
• web-push npm, VAPID keys in PM2 env vars
• push_subscriptions table in SQLite (endpoint, keys, filters, fail_count)
• server/push.js module: sendPushForSignal() called from emitSignal() — instant delivery
• Server-side filtering per subscriber: minConfidence, minRatio, watchlistOnly, types (array)
• Frontend: checkboxes UI for signal type selection (volume_spike, oi_longs, oi_shorts, oi_squeeze, oi_liquidation)
• Auto-cleanup: 410 Gone → delete, fail_count >= 3 → skip
• API: GET /api/push/vapid-key, POST /api/push/subscribe, POST /api/push/unsubscribe
• SW push event handler shows notification from server push
• Test signals excluded from push (id.startsWith('test-') guard)
• Click notification → opens/focuses PWA → signal marker arrow on chart
• setSignalMarkerAndOpen() — fetches signal by ID, sets _pendingSignalMarker, opens modal
• SW passes signalId in postMessage + URL ?signal=SYM&sid=ID for cold start
• Sound alert via Web Audio API (880Hz beep, in-tab only)
• Time display: real local time (24h), forced America/Vancouver timezone (DST fix)
• Fib custom levels: ⚙ popup для редактирования уровней (add/remove/reset), глобально в localStorage
• Price Alerts: 🔔 на hline/ray — при пересечении toast + browser notification, клик → модалка

Price Alerts System (Apr 10)

• Toggle 🔔 на hline/ray в draw panel
• WS проверяет crossing по ВСЕМ символам на каждом тике
• Toast notification (bottom-right): монета, направление, уровень, цена
• Browser Notification API (если разрешено)
• Cooldown 1 мин, макс 5 тостов, auto-dismiss 10с
• Клик по тосту → открывает модалку с монетой

Roadmap

• Спека: /home/app/brain/projects/futures-screener-v6-spec.md
• Бизнес-план: /home/app/brain/projects/futures-screener-roadmap.md
• Конкуренты исследованы (15 Apr): ScalpBoard, Digash, TaoScalp, CryptoScreener → 15 killer-фич
• Phase 1 ✅ | Phase 2 ✅ (multi-chart + drawings per slot + WS live) | Phase 3-5: MVP launch 1 May | Phase 6-7: May post-launch
• Phase 6 (🆕): Funding/OI/L-S data, Signals Tab, Liq Heatmap, TG алерты
• Phase 7 (🆕): Multi-exchange, Auto S/R, Формации, Workspaces, Секундные чарты, Depth overlay, Drag columns
• DONE (30 Apr, сессия 75): 8 bug fixes — klines cache volume (base→quote), reply undefined x2, sig→s ref error, WS zombie reconnect, localStorage perf, AudioContext leak, warmup retry limit, double $$. Коммит 568a396.
• TODO: Historical Signals Backtest (аналог Options Screener 2.4)
• TODO: Auto S/R Levels — drawAutoLevels()/drawModalLevels() готовы, нужна доработка логики
• TODO (23 Apr research): Multi-channel алерты (Telegram + Discord webhook + custom webhook) — #1 монетизационный рычаг. Free=3/день, paid=unlimited
• TODO (23 Apr research): AI Market Regime per coin (trending/ranging/volatile: ADX+ATR+BBWidth) + Composite Signal Score (OI×funding×CVD×vol → 1-100)
• TODO (23 Apr research): Liquidation Heatmap — расчёт уровней ликвидаций по OI+leverage estimation, heatmap overlay на графике. CoinGlass берёт $12/мес только за это
• TODO (23 Apr research): Pricing: sweet spot $10-15/мес. Free tier с ограничениями, Pro = unlimited alerts + heatmap + API
• DONE (19 Apr): Mobile responsive — header, sidebar (hamburger), toolbar, cards 1-2, signals detail overlay
• DONE (19 Apr): Settings verification, OI indicator overlay, timezone fix, OI signals v2 (regime+CVD+divergence), confidence filter
• DONE (19 Apr): Drawing tools on ALL charts (drawCtx refactor), push notifications (SW+background checker+click→modal)

🚀 Production Launch Plan (14 Apr 2026)

Цель: К концу недели (18 Apr) — прод на отдельном сервере с доменом.

Выбор названия (в процессе):

• Фавориты: AllScan.io, ScanAll.io, AllScreen.io, FutureScan.io
• Rick склоняется к "all*" префиксу (масштабируемость: futures → spot → options)
• Нужно проверить доступность доменов и зарегать на Hostinger

План:

1. ✅ Определиться с названием → проверить домен
2. Git cleanup (39 ahead, грязные файлы)
3. Security: path traversal fix, input validation, rate limiting, CORS
4. .env конфигурация
5. VPS на Hostinger + Ubuntu + Node + Nginx + SSL
6. Auth (JWT, free/pro tiers)
7. Landing page + meta tags + OG
8. PWA (manifest, SW, иконки)
9. Деплой на прод + DNS
10. Soft launch

Бюджет: .io ~$32/год, VPS ~$5-7/мес

Testing & Quality (2 May)

• CLAUDE.md создан — полное описание проекта для AI-агентов
• Vitest (npm test): 14 тестов — tests/logic.test.js (binLevels) + tests/scorer.test.js (analyzeBehavior)
• AgentLint Score: 33→72/100 (после CLAUDE.md + тестов)
• Audit report: brain/audits/agentlint-futures-screener-2026-05-02.md

Заметки

• 27 Apr 2026 (сессия 62): Global Binance Rate Limiter. 3-уровневая защита: (1) трекинг X-MBX-USED-WEIGHT-1M хедера из каждого ответа Binance; (2) soft throttle 500ms при 1800/2400 weight, hard throttle 5s при 2200/2400; (3) глобальная пауза ВСЕХ запросов при 429 (30s) или 418/IP ban (120s). RateLimitError class, bgetWithRetry не считает 429 за обычный retry (макс 3 rate-limit retry сверху). GET /api/rate-limiter диагностический endpoint. Коммит e6551af.
• 25 Apr 2026 (сессия 59): WS Migration /market/stream + TF Switch Fix. Binance депрекейтнули legacy /stream endpoint — klines на 15m+ перестали получать live данные. Миграция клиентского WS на wss://fstream.binance.com/market/stream (роутированный endpoint). При смене TF теперь полностью убивается и пересоздаётся WS (вместо unsub/resub — race condition). RE-SUB safety net: если 0 тиков через 5с, пересоздаёт стримы из видимых чартов. Серверный ws.js: упрощён _cleanup() terminate. Оптимизация: computeTLDistance skip если тренлайны выключены. SW cache fs-v29, SW_VER 29. Коммит 4381cba.
• 25 Apr 2026 (сессия 58): S/R Levels v2 + Trendlines v3 — research-based rewrite. Ресёрч GitHub/TradingView лучших алгоритмов (trendln 697★, neurotrader888 552★, pytrendline 129★, LuxAlgo Pine). S/R v2: DBSCAN кластеризация (inline, no npm — клиентский код), Volume Profile POC/VAH/VAL (100 бинов, 70% value area), Multi-TF confluence (modal+slots async fetch 2 higher TFs, ★2TF/★3TF boost), Break detection (score×0.5 broken ✗, score×0.8 retested ↻). Unified levelToPriceLine() helper (DRY rendering). Trendlines v3: ZigZag свинги (3×ATR threshold → 5-15 vs 30+ points), Gradient descent slope optimization (50 iter, ZERO violations — neurotrader888 approach), enforce slope direction (support slope>0, resistance slope<0), lines extend from chart start, exponential scoring touches^2.5. Коммит c5edf2a.
• 25 Apr 2026 (сессия 57): Auto S/R Levels + WS Multi-Connection Fix. Server WS флапал (536 стримов в 1 соединение, Binance лимит 200) — разбит на multiple connections по 190 стримов (класс BinanceWSConnection). Auto S/R levels: fractal pivot detection (window ±10) + ATR-based clustering (merge dist = ATR×1.5) + composite scoring (touches×10 + recency×15 + volume×2). Тип level по позиции vs price (не по типу пивота). Max 3S + 3R nearest to price. Toggle ☑ Levels + кнопка Sort S/R в тулбаре. Applied to mini-charts, modal, multi-chart slots. Mini-charts: batch 500→1500 candles, visible 100→200, infinite scroll added. IDB tier убран (вызывал гэпы при delta merge) — теперь Memory→Server SQLite напрямую. Sidebar 260→300px. Коммит ab5b9ec.
• 24 Apr 2026 (сессия 56): 3-Tier Klines Cache + Infinite Scroll. IndexedDB persistent cache: Memory (0ms) → IndexedDB (5-20ms) → Server batch fetch. Charts load instantly on scroll-back/page refresh. Delta fetch for stale IDB data (>5min → fill gap, WS takes over). Infinite scroll: load 1500+ candle history when user scrolls to left edge (subscribeVisibleLogicalRangeChange, 20K target). SW force update mechanism (version tracking + cache clear on bump). Debounced WS unsubscribe (200ms batch) for smooth fast scrolling. Server klines-cache.js module. Убран 2-phase load (100→500) в пользу single 1500-candle fetch + cache. Rick проверял мобильный UI (скриншот), заметил тесноватость split-view на телефоне. Коммит ccd2c26.
• 23 Apr 2026 (сессия 55): Full Code Audit — 25 fixes. Security: CORS whitelist (@fastify/cors), rate limiting (100/min + 15/min login), XSS escAttr(), nginx headers (X-Frame-Options, nosniff), JWT fail in prod, test endpoint auth. Stability: 10s fetch timeout, graceful shutdown, Promise.allSettled, HTTP 503. Performance: static files in memory, search debounce, WS throttle 4/sec. Client: WS beforeunload, modal AbortController, localStorage quota handling, cross-tab sync. Bugfix: app.js orphan (not in HTML), escAttr/lsSet→inline script, fs reference error. Dead code cleanup. 27 коммитов 3474a90→2ab0d58.
• 22 Apr 2026 (сессия 52): WS Flap Fix + JWT + Push/In-tab Split. WS Binance флапал (connect→disconnect каждые 5с, idle без подписок). Фикс: lazy connect при первом subscribe(), ping keepalive 3мин, race condition fix. JWT_SECRET зафиксирован в PM2 env. Push toggle разделён: signalNotifications (in-tab toast/sound) и signalPush (серверный push, телефон/закрытый браузер) — выключение одного не убивает другой. VAPID keys в PM2 env. Коммит c391b6f.
• 3 May 2026 (сессия 85): NATR Cache Race Fix + Push Retry. Channel scan 300-500с→2-13с. Root cause: NATR cache TTL race condition → фильтр не работал → все 64 символа сканировались → rate limiter throttle → 6 "зомби" символов timeout. Fix: read/cleanup TTL 300→600с, первый scan 10→45с. Push retry 2x+backoff+timeout. getFundingMap stale fallback. Worktree удалён+отключён. Коммит bb0deb1.
• 21 Apr 2026 (сессия 50): LWC v5 Modal Chart Fix. Root cause: createTextWatermark() бросал attachPrimitive is not a function TypeError, крашил openCoinModal() до loadModalChart(). Чарт показывал 2-3 свечи (WS тики) вместо 1000. Фиксы: try/catch на createTextWatermark/createSeriesMarkers, убрана CDN lightweight-charts-drawing@0.1.1 (v4-only, 404), CSS .mc-modal.hidden → visibility:hidden (не display:none), innerHTML cleanup, ResizeObserver fallback. Коммит 66654f1.
• 20 Apr 2026 (сессия 48): Signal Trader Bot + Push Filter UI. Новый бот signal_trader.py торгует volume_spike сигналы на Binance Futures (LONG+SHORT, $15, 3x lev, partial TP 2.5%→trail 1%, SL 1.5% exchange STOP_MARKET, 12h time stop, max 5 pos). Blacklist heavy+bad WR coins. TMM tags. Push UI: checkboxes для типов сигналов, minRatio fix 3→2. PM2 signal-trader. Коммиты 91e61fb, 31f9fb8.
• 20 Apr 2026 (сессия 46): Server Web Push + Time Fixes. Заменили client-side polling на серверный Web Push (VAPID/web-push). Мгновенная доставка из emitSignal(). push_subscriptions в SQLite, server-side filtering, auto-cleanup. Test signals исключены. Time display: "Xm ago"→реальное время 24h. DST fix: timeZone:'America/Vancouver'. Signal stats: 2634 сигнала, SHORT WR 84%, vol ratio 5-10x лучший. Коммит 33085a1.
• 18 Apr 2026 (сессия 40): Settings Panel Overhaul. 8 секций, 30+ настроек, все wired. ⚙️ справа в header. Старый левый сайдбар убран. Charts (candle/scale/grid/TF/cards-per-row/card-size/sidebar-cols), Densities, Signals (ratio/cooldown/watchlist-only), ⭐Watchlist (★ btn, first-sort, manage), 🎨Theme (3 темы+6 color presets+custom picker), 📡Data (refresh/sort/minVol), Layout, Reset+Export/Import. localStorage persist, toast feedback. Коммит d79f666.
• 18 Apr 2026 (сессия 38): Signals Overhaul + Countdown + Candle Sync. Signals из DB (24h, переживают рестарты). Signal timestamps = candle openTime. DB dedup (cooldown переживает рестарты). UTC tz fix (T+Z). WS candle TZ_OFFSET_SEC fix (lag). Phase 2 setVisibleRange (no jump). Countdown timer в toolbar. Default TF 5m. Confidence rounded. Price line убрана. Anti-scroll при pan. Коммит 4ad217c.
• 18 Apr 2026 (сессия 36): Signals Tab + OI+CVD + Outcome Tracker. Backend scanner server/signals.js: fast scan 60s (vol_spike/big_mover/natr_spike) + OI+CVD scan 5min (openInterestHist 1h period + taker ratio, top 50, 3% threshold → ~4 signals/scan, 4 subtypes: oi_longs/oi_shorts/oi_squeeze/oi_liquidation). Outcome tracker v2: snapshots 5m/15m/1h/4h/1d + MFE/MAE continuous tracking 30s. Frontend app/signals.js Hybrid (table+detail panel), filters, 30s refresh, Open Chart btn. Density_break removed. Wheel zoom 3x reverted. Коммиты be6c673, 986d485.
• 17 Apr 2026 (сессия 35): Drawing Tools + Copy Ticker + UI Polish. Fib per-level colors (color dot per level, 12-color palette, persist, backward compat old→new format). Fib solid lines (was dashed). Rectangle tool (B key, 2-click, 4 borders + area fill, color change, persist, mini-charts/multi-chart/modal). Copy ticker button on sidebar, mini-chart cards, multi-chart headers, modal (copies galausdt lowercase). Price scale narrower (minimumWidth 32-50, precision reduced: fewer trailing zeros). Mouse wheel zoom 3x faster (custom handler replaces default). Default sort Chg% desc (top gainers first). Sidebar grid fixed for copy btn column. Signals Tab Variant 3 (Hybrid: table + detail panel) chosen. Коммит 1657ce6.
• 17 Apr 2026 (сессия 34): Density v2 fixes + Server Cache + Performance. Density tab fix (auto-load on first click, was silently empty). Ticker click→modal (was Binance link). Rate limit protection: concurrency 10→3, delay 500ms, graceful skip on 429. Disk cache for density (survives PM2 restart). Background warmup: density WS 537 symbols gradual (10/batch, 20s pause, no bans). Klines pre-warm: top-200 by volume × 3 TFs (15m/1h/4h) on startup. Historical klines cache 10s→5min. Modal phase 1: 150→1000 candles (instant from cache). Mini-charts: debounced Observer (50ms collect all visible), batch 8→20, batch density (1 request for all). Density walls on ALL chart types (mini-charts, modal, multi-chart). 10 коммитов 8b11965→cbe471a.
• 17 Apr 2026 (сессия 33): Phase 2 Multi-Chart + Memory Leak Fix. Layout picker (grid/1/2/4) с SVG иконками в тулбаре. Chart slots: независимый TF, live WS updates, OHLCV legend, auto-advance active slot. Sidebar routing: grid→modal, multi-chart→slot. Persist layout+symbols в localStorage. Memory leaks fixed (5шт): cache/proxyCache Maps не удаляли expired entries, books bids/asks без TTL, binHistory 5% рандомный cleanup→30s детерминированный, WS listeners дублировались при reconnect. Heap 89%→40% после рестарта. Коммит 198472a. Drawings per slot (ccd6506): рисунки per-symbol (не per-TF) — нарисовал на 4h, видно на 1m. Density v2 backend (655236d): scoring на x-multiplier (wall/avg5mVol), убран blacklist (BTC/ETH теперь сканируются), все 500+ перпов, top 3 per coin, severity L/M/S. Density UI v2 (edbda7b): xMult колонка, severity бейджи (L/M/S цветные), теги (Concrete/Robot/Tech Level), всё на английском, убран debug, обновлены mobile cards. Density on charts (5d83932): bid walls (зелёные) и ask walls (красные) пунктирные pricelines на multi-chart слотах с label "$1.2M x8".
• 15 Apr 2026 (сессия 31): v6 Phase 1 COMPLETE + performance. Sidebar: CSS Grid 4 колонки (Coin|Chg%|NATR|Vol), кликабельная сортировка asc/desc, Sort dropdown удалён. NATR fix (sidebar + chart headers). Batch klines (POST /api/klines-batch, 20 symbols параллельно — чарты грузятся в 4-6x быстрее). rightOffset 10 на всех графиках. PWA. Спека обновлена с серверным кешем. TODO: Phase 2 Multi-Chart layout.
• 15 Apr 2026: v6 Phase 1 Auth DONE. Auth (JWT+Google OAuth, SQLite 7 таблиц, 19 endpoints), Settings Panel (Grid/Charts/Densities/Cleanup, slide-out). Конкурентный анализ Scalpboard.io (13 скринов). Спека: futures-screener-v6-spec.md. Файлы: server/auth.js, app/auth.js, app/settings.js.
• 14 Apr 2026: Начали планировать прод-запуск. Отдельный сервер Hostinger, новый домен. Обсуждаем названия (AllScan/ScanAll/AllScreen/FutureScan).
• 10 Apr 2026: v5 — Вертикальный тулбар рисовалок (SVG), horizontal ray (single click, draggable), fib custom levels popup, drawings on mini-charts, price alerts system (toast + browser notifications), UI polish. Roadmap создан и частично одобрен.
• 9 Apr 2026: v4 — Volume bars (mini+modal+WS), Drawing tools (hline/ray/trendline/fib с preview), Coin search в сайдбаре, Color flags (7 цветов, localStorage, flagged наверху), Ruler с временем. Коммит efd89d6.
• 6 Apr 2026: Mini-Charts v3 — full market screener (ALL пары, виртуальный скролл, IntersectionObserver). Binance proxy через Fastify (ticker 30s, klines 10s кеш). Живые свечи через WS. 2-фазная загрузка (100 instant → 500 background). Split app.js → densities.js + mini-charts.js. UI polish: dark terminal, compact header, shimmer, 4-col wide. Coin modal с live WS. Скилл обновлён.