shared/data/

Holds the backtest cache (SQLite) built by stage 02_fetch_cache.

backtest_cache.sqlite3 — keyed by (contract, timespan, window). Cache-first: existing rows are never re-pulled from TTG data servers.
This folder may grow large. Cap discipline lives in _config/risk-params.md.
Delete the .sqlite3 file to force a full re-pull (stage 02 will rebuild it).