- scripts/prepare_hourly.py: M1→hourly aggregation (realized_vol = sqrt(Σr²), MIN_BARS=30 threshold, no weekend rows, year-based split preserved) - tests/test_prepare_hourly.py: 5 TDD tests, all green - train.py: USE_HOURLY=True, WINDOW=240 (10-day), PATCH_LEN=24 (1-day patches); build() prefers eurusd_hourly.parquet, falls back to daily; EXPORT BLOCK updated - Taskfile.yml: data:fetch:historical, data:prepare:hourly, data:prepare:all, data:test - 98,591 hourly rows (2008-2023) covering GFC, Euro crisis, Brexit, COVID, Fed cycle Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
