e798fce6a8
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fundamental-analysis: added statistical risk layer - normality test (Jarque-Bera) — validates Sharpe/VaR reliability - unit root test (ADF) — validates technical analysis applicability - rolling skew/kurtosis — tail risk monitoring - interpretation rules for crash risk detection portfolio-review (NEW): portfolio health check and similarity search - HRP optimization, correlation matrix, risk parity weights - t-SNE clustering for hidden correlations - stock similarity search for diversification - rule-engine BUY_MORE/HOLD/SELL per holding strategy-backtest (NEW): historical strategy validation - SMA crossover, RSI mean-reversion, buy-and-hold, momentum - comparison framework with Sharpe, max DD, win rate - validation workflow for trade-analyze recommendations Coverage: 67% → 79% of API endpoints (104/131)