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hybrid edge-margin policy (edge_threshold + entry_price_max cap) — BTC +$1247
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raise entry_price_max cap to $0.60 (more coverage, trades can enter pricier tokens)
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fix KeyError: directional-mode diagnostics (no more entered/hedged/exit_type columns)
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directional classifier: predict UP wins + price-aware trading (lower ask = better EV)
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label v4 baseline run: post-hoc optimal hedge ceiling, no policy Optuna
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add policy-parameter Optuna: tune (entry_thr, combined_thr, min_tick) before classifier
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v1_arb: simulate real live policy (entry ≤$0.40, hedge at combined ≤$0.80)
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label v4: entry FIXED at tick 120, hedge scan [121,899], threshold=$20
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label: entries scan [120,899] (live reality) + threshold=$70 (75%ile)
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label: min_entry_tick=120 (no leakage) + threshold=$10 + pnl distribution log
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label fix: binary uses hedged-arb only (no-hedge=directional bet, not arb)
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clean import in iter_orderbook_slug_pairs
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stream orderbook row-groups via pyarrow (fix OOM, peak 5MB/slug)
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fix: numpy 2.4 float(1d-array) in _walked_ask_cost
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log full traceback on window error (debug float/int conversion)
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batch-load orderbook (fix OOM on 37GB BTC parquet)
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v1_arb trainer code for sol
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initial commit
