Bake window: derived note lengths carry exact durations, not ladder rungs — a long take is no longer cut at 384 beats

Hold keeps its picker. Also: one home for the %-fold, duration-ordered Hold travel, and a corrupt tail degrades to absent rather than fabricating one.

src/core/instrument/ui/bake_hold.h

@@ -1,14 +1,16 @@
 #pragma once
 // bake_hold — how one radial knob addresses the note-length ladder: the Hold control's
-// normalized [0,1] position mapped onto a Division and back. The ladder and its picker order
-// are musical_division's; nothing about them is restated here.
+// normalized [0,1] position mapped onto a Division and back. The ladder itself is
+// musical_division's; only the knob's travel ORDER is decided here.
 
 #include "core/instrument/note/musical_division.h"
 
 namespace reasampler::instrument::ui {
 
-// [0,1] across the ladder in picker order (shortest rung first). Out-of-range or non-finite
-// input clamps to an end rather than wrapping — a knob cannot express anything else.
+// [0,1] across the ladder ordered by LENGTH, shortest first — NOT the ladder's picker order,
+// which is presentation order and would shorten the note at every rung boundary. Out-of-range
+// or non-finite input clamps to an end rather than wrapping — a knob cannot express anything
+// else.
 note::Division bakeHoldFromNorm(double norm);
 
 // The inverse: the position that reproduces `hold` exactly, so a knob painted from a stored