Orderbook Liquidity Heatmap + Layer1 (L1) Terminal Enhancements

Release Notes

Added

• Orderbook Liquidity Heatmap page (/heatmap)
  Depth heatmap visualization with layout toggle:
  Top/Bottom or Left/Right

• Market depth analytics
  Futures-first orderbook data with Spot fallback
  Cumulative Depth Chart
  Volume Distribution chart

• Market structure analysis
  Support / Resistance Zones
  Orderbook Velocity indicator
  Spread Analysis
  Short-Term Bias indicator

• Market microstructure alerts
  Liquidity Wall Analysis
  Orderbook Imbalance detection
  Liquidity Cluster Detection
  Spoofing / Fake Wall warning (basic)
  Flags liquidity walls that drop >70% within 5 seconds

• Connection monitoring
  Disconnected data feed warning banner
  "How to use" guide (Indonesian / English)

• Binance symbol metadata API
  Endpoint:
  GET /api/binance-symbols

  Returns:
  symbol
  baseAsset
  quoteAsset

  Source:
  Binance exchangeInfo
  Futures market preferred with Spot fallback

  Cached to reduce API calls:
  revalidate = 3600

Changed

• Improved symbol selection UX in Heatmap
  Searchable dropdown now displays:
  SYMBOL (BASE / QUOTE)

  Example:
  BTCUSDT (BTC / USDT)

• Binance-only metadata used for accurate asset mapping

Fixed

• Vercel build failure on /api/binance-symbols
  Cause:
  Non-static route configuration

  Fix:
  revalidate now set as static literal (3600)
  to satisfy Next.js / Vercel segment config requirements

• Heatmap stability improvements
  Fixed "Maximum update depth exceeded" render loop
  Fixed bid table not updating on symbol change
  Reduced excessive blank space under Depth Heatmap table

Notes
If Binance endpoints are blocked from the deployment region
(e.g. HTTP 451), the application may show "disconnected" warnings.

For Vercel deployments this depends on Vercel server region / IP,
not the user's local VPN or DNS configuration.

Environment Variables (optional)

MONGODB_URI
MONGODB_DB

Used for Layer1 whale wall logs persistence
if enabled in your build configuration.