Audit Bot — Live vs Backtest + Trade Hygiene

Produces two reports that answer:

1. Audit 1 (trade-hygiene-<DATE>.md) — does every model signal become an order? Does every order become a broker fill? Are directions, sizes, and SL/TP correct? Are there orphan trades or unlinked exits?
2. Audit 2 (live-vs-backtest-<DATE>.md) — does the backtester reproduce the live bot's model output? Per-bar confidence + per-entry confidence, plus the batch-vs-incremental feature parity check that guards against look-ahead regressions.

Both reports come from reusable harnesses in ml/scripts/. Re-run after every monthly retrain.

Required inputs