Private training data collected from the configured MetaTrader 5 broker.
five_second/: causal 5-second aggregates built from bid/ask ticks.
bars/M1, bars/M5, bars/M15: broker OHLC bars.
All timestamps are UTC.
Tick direction is quote movement, not centralized exchange buyer/seller volume.
News exclusion and final train/validation/test splitting happen in a later preparation stage.
