Delete row 839 from strategy_logs

id 839
time 2026-02-17 12:50:00
symbol BTC/USDT
price 68440.0
rsi 44.84
macd -82.69
bias NULL
pred_10m 看涨
conf_10m 65
pred_30m 看涨
conf_30m 55
strategy 价格位于关键支撑Fib 0.5，5m RSI超卖，存在均值回归需求。
backtest_10m ✅ 看涨 vs 看涨
backtest_30m ❌ 看涨 vs 看跌
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