- Add BollingerPercentB indicator class in backend (BOL%B)
- Calculates %B = (Close - Lower) / (Upper - Lower)
- Shows where price is relative to Bollinger Bands
- Values: 1.0 = upper band, 0.5 = middle, 0.0 = lower
- Add BollingerPercentB JavaScript class for frontend display
- Creates its own chart (chart4) like RSI/MACD
- Includes chart binding for synchronized scrolling
- Add chart4 HTML container and data plumbing
- Fix credential update when reconnecting with changed API keys
- Add TESTNET_MODE config setting for live trading mode control
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
rob
3e6463e4b3