- Update series creation to v5 API (addSeries with type parameter)
- Migrate watermarks to createTextWatermark plugin
- Migrate markers to createSeriesMarkers primitive
- Replace getBarSpacing() with timeScale().options().barSpacing
- Update crosshair handler: seriesPrices → seriesData
- Move scaleMargins from series options to price scale
- Fix chart sync infinite loop with time-based debounce (50ms)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
rob
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