This folder receives runtime artifacts at training/deployment time:
  - trade_log.csv / bar_history.csv (written by Export_TradeLog.mq5 / Export_BarHistory.mq5)
  - offline_dataset.csv  (written by build_offline_dataset.py)
  - cql_weights.bin      (written by CQL_OfflineTrain.mq5, read by the EA)
All paths are FILE_COMMON, i.e. %APPDATA%\MetaQuotes\Terminal\Common\Files\CQLOfflineRL\
