2c0ca53bd6
The simulator charges (cost_bps + slippage_bps) on each fill, so a full round trip is charged twice. Correct the cost-model doc, the reversal_5d report, and the report generator to state the rate is one-way per-trade (~20 bps round trip for 5+5), rather than mislabeling it round-trip. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>