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>
- Store daily BTC OHLC candles in SQLite to avoid hitting CoinGecko on every load
- Seed with 30 days of daily candles on first boot (free tier gives daily granularity for days<=30)
- Auto-detect and replace coarse legacy candle data on startup
- Daily refresh adds new candles on each container restart
- New GET /candles endpoint (supports ?days=365 and ?days=all)
- Switch BTCHistoryChart to BTCCandlestickChart using lightweight-charts (TradingView)
- Purchase markers with nearest-candle matching and multi-purchase merging
- Fullscreen mode showing all stored candles
- Fix frontend port to 3001 and pass REACT_APP_API_URL as build arg
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Jonathan