deriv-lightweight-charts

Add TradingView's Lightweight Charts (the lightweight-charts npm package, Apache-2.0, ~60 KB) as the slim price chart of an application built on the New Deriv API Options platform, fed from the app's shared WebSocket and overlaid with barriers and trade markers derived from its trading state. Use whenever a task mentions Lightweight Charts, a TradingView chart, a small or minimal chart, a candlestick or tick chart without SmartCharts, or "add a chart" to an app that names no library (this is the default chart) — even if the user just says "show the price", "a simple chart is enough", or "draw the result on the chart". Not for a second WebSocket, for Legacy API compatibility, or for the full SmartCharts terminal (read the chart selection guide first).