⚠️  COINBASE_BTCUSD, 1D.csv  [4191 rows, 2014-12-01→2026-06-25]
     warn:  last bar 2026-06-25 is 88d behind now (stale export?)
     warn:  8 time gaps > 1.5×1D (largest 21 days 00:00:00)
     warn:  2 bars move >50% in one bar (worst 70% at 2015-01-15) — verify not a price glitch
⚠️  COINBASE_BTCUSD, 240.csv  [19437 rows, 2017-10-07→2026-08-21]
     warn:  first bar 2017-10-07 is after TRAIN_START 2015-01-01 — indicator warm-up may be short
     warn:  2 time gaps > 1.5×4H (largest 0 days 16:00:00)
⚠️  COINBASE_BTCUSD, 360.csv  [12928 rows, 2017-10-15→2026-08-21]
     warn:  first bar 2017-10-15 is after TRAIN_START 2015-01-01 — indicator warm-up may be short
     warn:  last bar 2026-08-21 is 31d behind now (stale export?)
     warn:  1 time gaps > 1.5×6H (largest 0 days 12:00:00)
⚠️  COINBASE_BTCUSD, 480.csv  [11189 rows, 2016-06-05→2026-08-21]
     warn:  first bar 2016-06-05 is after TRAIN_START 2015-01-01 — indicator warm-up may be short
     warn:  1 time gaps > 1.5×8H (largest 0 days 16:00:00)
⚠️  COINBASE_BTCUSD, 720.csv  [8370 rows, 2014-12-01→2026-06-25]
     warn:  last bar 2026-06-25 is 88d behind now (stale export?)
     warn:  12 time gaps > 1.5×12H (largest 20 days 12:00:00)

5 file(s): 0 with errors, 5 with warnings only.