backtesting.py Oracle Validation for Range Bar Patterns Configuration and anti-patterns for using backtesting.py to validate ClickHouse SQL sweep results. Ensures bit-atomic replicability between SQL and Python trade evaluation. Companion skills : (SQL correctness, AP-16) | (sweep design) | (evaluation metrics) Validated : Gen600 oracle verification (2026-02-12) — 3 assets, 5 gates, ALL PASS. --- Self-Evolving Skill : This skill improves through use. If instructions are wrong, parameters drifted, or a workaround was needed — fix this file immediately, don't defer. Only update for real, reprod…