PLN re-listened to the forged hammer kit: vox cuts weren't voice-only,
06_vox_breakitdown didn't loop, kit felt below the track's stature. All three
confirmed by measurement and fixed in a v2 rebuild (catch report.md has the
full story): demucs-stem vox bleed sat just −2.4 dB under the cut RMS on the
worst file; the energy-corrected cut bounds were themselves bleed-biased
(06 started a full second before the word); the rotated loop exports had
never been promoted. v2 = roformer-vocals re-cuts on true onsets, a
roformer-instrumental→demucs cascade for ghost-free instrument loops, the
missing 2-bar breakitdown loop, and the rotation finally shipped.