HTF Bias Validation

Trader-vs-engine bias validation harness. Runs the real, unmodified StrategyEngine against real persisted MNQ historical data (the same production path Replay and Backtest use) for each date, reading back exactly the same Daily/4H/1H HTF bias decision the engine already freezes at 09:30 ET — no new bias scoring, no synthetic candles, no invented evidence. Anything the engine cannot deterministically compute (e.g. liquidity/draw evidence prior to a setup existing) is reported as MISSING rather than a proxy.