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Chart now plots weekly data points from first purchase to today using candle/history price data, giving an accurate view of portfolio value over time rather than just at purchase dates. Backend seeds up to 365 days of daily close prices from CoinGecko as synthetic OHLC candles, refreshing stale entries older than 31 days. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>