Interface ChartData

src/components/ChartPanel.tsx:49–53

Cached data from fetch — survives mode/indicator changes

/** Cached data from fetch — survives mode/indicator changes */
interface ChartData {
  key: string; // "marketId:timeRange" to identify cache validity
  multi: { label: string; points: { time: number; value: number }[] }[] | null;
  bars: OHLCBar[];
}

function computeMA(bars: OHLCBar[], period: number): { time: number; value: number }[] {
  const result: { time: number; value: number }[] = [];