The two `crate::cuda_pipeline::clone_htod_f32` callsites in
`training_loop.rs::set_raw_market_data` (lines 1250 and 1254) are
rewritten to `mapped_pinned::clone_to_device_f32_via_pinned` per
`feedback_no_htod_htoh_only_mapped_pinned.md`.
These run once per fold immediately before the step loop begins; the
`_raw` suffix indicates the un-normalized arrays kept on-GPU for the
eval-time critic.
Error-type continuity: the helper already returns `Result<_, String>`,
which feeds `anyhow::anyhow!("…raw upload: {e}")` directly — the prior
.map_err wrapper is preserved verbatim. 1:1 path swap.
docs/dqn-gpu-hot-path-audit.md updated with Fix 16 entry.
cargo check -p ml --lib clean at 12 warnings.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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