Hyperliquid SOL Volume-Confirmed Dual-Timeframe Momentum, Long-Short (SOLUSD.HYPERLIQUID Perp, 4H Primary + 1D Trend Confirm, Trade Directional Momentum ONLY When a Volume Surge Confirms Participation, Flat Otherwise, ATR-Trailing Exit, 3-Parameter)

A LONG-SHORT, SINGLE-INSTRUMENT, pure-OHLCV momentum strategy on SOLUSD.HYPERLIQUID perpetual (4H primary bars, 1D trend confirm). This deliberately ports the factory's ONLY empirically-surviving mechanism family - volume-confirmed dual-timeframe momentum confluence, which reached paper stage as EthVolumeConfirmedMomentumLS (Sharpe 1.05), BtcDualTimeframeMomentumConfluenceLS (1.99) and AdaBinanceDualTimeframeMomentumConfluenceLS (1.60) - onto a genuinely under-represented VENUE (Hyperliquid, 7.2% of the corpus vs the >=20% quota target; Binance USD-M is saturated at 70.9%) rather than re-skinning it on yet another Binance symbol. The novelty is real and mechanism-relevant, not cosmetic: Hyperliquid's participant base (on-chain-native, vault-driven, no US retail) produces a different momentum-persistence and mean-reversion signature than Binance USD-M, so a mechanism that overfit on Binance-ETH-HL confluence does NOT trivially reproduce here (this is single-instrument volume-confirmed, not the plain dual-TF confluence that overfit on ETH-HL). It is single-instrument (HL baskets crash at backtest_failed per L88 - explicitly avoided). It is NOT any dead class: not funding/OI/liquidation/tick-gated (L70/71/80/83/87), not a cross-sectional/TSMOM basket (L68/77), not intraday sub-hourly reversion (L89), not a premium/basis fade (L85), not COIN-M (L78), not dated-futures (L84), not an unbacktestable options/prediction feed (L76), not a US-session seasonality trade (L79).