Michael Simard 6f6b6360ca Implement custom 5-minute candlestick charts via Finnhub + QuickChart ...

Replace FinViz charts with custom-generated candlestick charts:
- Fetch 5-minute OHLC data from Finnhub API
- Generate candlestick chart images via QuickChart API
- Display last 50 candles with time-based x-axis
- Fallback to FinViz daily chart if intraday data unavailable

New FinnhubAPI methods:
- get_intraday_candles(): Fetch 5-min candle data
- generate_chart_url(): Create QuickChart URL from candle data

Chart specifications: 800x400px, Chart.js v3, candlestick type

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

2025-12-03 19:31:18 -06:00

5.7 KiB

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