feat(ProgressBar): under reduced motion the indeterminate bar pulses in place

.changeset/progress-bar-reduced-motion-pulse.md

@@ -0,0 +1,7 @@
+---
+'@astryxdesign/core': patch
+---
+
+[feat] Under reduced motion, an indeterminate ProgressBar no longer slides: on every pointer its fill spans the whole track and gently pulses its opacity in place, from full down to 84% and back, two seconds each way. A theme's tempo does not change the pulse, and in the default light and dark themes every fill tone that stands out from the track at 3:1 still does at the pulse's lowest point.
+
+@vjeux

.changeset/progress-bar-touch-timing.md

@@ -0,0 +1,7 @@
+---
+'@astryxdesign/core': patch
+---
+
+[feat] Under a finger (a coarse primary pointer, on every touch device), a determinate ProgressBar moves to a new value the way iOS's progress view does: linearly, taking one second per full track of change at the theme's default tempo (0.8 s from 10% to 90%), and from wherever the fill is drawn when the value changes again mid-way. A theme's tempo scales that time. Above zero the fill never draws shorter than two track heights, and at zero it is not drawn. The motion runs on the compositor, so it keeps going while a script runs; under reduced motion, or with forced colors on, a new value lands at once. A mouse or trackpad keeps the theme's duration and easing.
+
+@vjeux

docs/specs/AST-094-touch-presentations/motion-roles.md

@@ -4,25 +4,28 @@
 
 Every motion role a registered table lists (`spec:AST-094` FR4, DEC-5): its kind, its default as the table measures it, and the record that names it. A role FR4 lists is named by FR4; any other role is one a component's own record measures, named by the current component records that carry its id.
 
-| Role                         | Kind     | Default                             | Named by           |
-| ---------------------------- | -------- | ----------------------------------- | ------------------ |
-| `springs.contextMenuDismiss` | spring   | response 0.35 s, damping ratio 0.85 | `spec:AST-094` FR4 |
-| `springs.contextMenuLift`    | spring   | response 0.32 s, damping ratio 0.8  | `spec:AST-094` FR4 |
-| `springs.contextMenuMorph`   | spring   | response 0.3 s, damping ratio 0.8   | `spec:AST-094` FR4 |
-| `springs.directChange`       | spring   | response 0.5 s, damping ratio 0.825 | `spec:AST-094` FR4 |
-| `springs.emphasis`           | spring   | duration 0.5 s, bounce 0.3          | `spec:AST-094` FR4 |
-| `springs.fingerTracking`     | spring   | response 0.15 s, damping ratio 0.86 | `spec:AST-094` FR4 |
-| `springs.menuClose`          | spring   | response 0.35 s, damping ratio 0.85 | `spec:AST-094` FR4 |
-| `springs.menuOpen`           | spring   | response 0.32 s, damping ratio 0.8  | `spec:AST-094` FR4 |
-| `springs.quickChange`        | spring   | duration 0.5 s, bounce 0.15         | `spec:AST-094` FR4 |
-| `springs.settle`             | spring   | duration 0.5 s, bounce 0            | `spec:AST-094` FR4 |
-| `springs.stateChange`        | spring   | response 0.55 s, damping ratio 1    | `spec:AST-094` FR4 |
-| `springs.subMenuBack`        | spring   | response 0.4 s, damping ratio 1     | `spec:AST-094` FR4 |
-| `springs.subMenuOpen`        | spring   | response 0.4 s, damping ratio 0.85  | `spec:AST-094` FR4 |
-| `springs.timedChange`        | spring   | duration 0.5 s, bounce 0            | `spec:AST-094` FR4 |
-| `springs.viewChange`         | spring   | mass 3, stiffness 1000, damping 500 | `spec:AST-094` FR4 |
-| `timing.curves.entrance`     | curve    | cubic-bezier(0, 0, 0.58, 1)         | `spec:AST-094` FR4 |
-| `timing.curves.exit`         | curve    | cubic-bezier(0.42, 0, 1, 1)         | `spec:AST-094` FR4 |
-| `timing.curves.move`         | curve    | cubic-bezier(0.42, 0, 0.58, 1)      | `spec:AST-094` FR4 |
-| `timing.curves.viewChange`   | curve    | cubic-bezier(0.25, 0.1, 0.25, 1)    | `spec:AST-094` FR4 |
-| `timing.stateChangeMs`       | duration | 250 ms                              | `spec:AST-094` FR4 |
+| Role                            | Kind     | Default                             | Named by                |
+| ------------------------------- | -------- | ----------------------------------- | ----------------------- |
+| `progress.curves.fill`          | curve    | cubic-bezier(0, 0, 1, 1)            | `component:ProgressBar` |
+| `progress.fillTrackMs`          | duration | 1000 ms                             | `component:ProgressBar` |
+| `progress.reducedMotionPulseMs` | duration | 2000 ms                             | `component:ProgressBar` |
+| `springs.contextMenuDismiss`    | spring   | response 0.35 s, damping ratio 0.85 | `spec:AST-094` FR4      |
+| `springs.contextMenuLift`       | spring   | response 0.32 s, damping ratio 0.8  | `spec:AST-094` FR4      |
+| `springs.contextMenuMorph`      | spring   | response 0.3 s, damping ratio 0.8   | `spec:AST-094` FR4      |
+| `springs.directChange`          | spring   | response 0.5 s, damping ratio 0.825 | `spec:AST-094` FR4      |
+| `springs.emphasis`              | spring   | duration 0.5 s, bounce 0.3          | `spec:AST-094` FR4      |
+| `springs.fingerTracking`        | spring   | response 0.15 s, damping ratio 0.86 | `spec:AST-094` FR4      |
+| `springs.menuClose`             | spring   | response 0.35 s, damping ratio 0.85 | `spec:AST-094` FR4      |
+| `springs.menuOpen`              | spring   | response 0.32 s, damping ratio 0.8  | `spec:AST-094` FR4      |
+| `springs.quickChange`           | spring   | duration 0.5 s, bounce 0.15         | `spec:AST-094` FR4      |
+| `springs.settle`                | spring   | duration 0.5 s, bounce 0            | `spec:AST-094` FR4      |
+| `springs.stateChange`           | spring   | response 0.55 s, damping ratio 1    | `spec:AST-094` FR4      |
+| `springs.subMenuBack`           | spring   | response 0.4 s, damping ratio 1     | `spec:AST-094` FR4      |
+| `springs.subMenuOpen`           | spring   | response 0.4 s, damping ratio 0.85  | `spec:AST-094` FR4      |
+| `springs.timedChange`           | spring   | duration 0.5 s, bounce 0            | `spec:AST-094` FR4      |
+| `springs.viewChange`            | spring   | mass 3, stiffness 1000, damping 500 | `spec:AST-094` FR4      |
+| `timing.curves.entrance`        | curve    | cubic-bezier(0, 0, 0.58, 1)         | `spec:AST-094` FR4      |
+| `timing.curves.exit`            | curve    | cubic-bezier(0.42, 0, 1, 1)         | `spec:AST-094` FR4      |
+| `timing.curves.move`            | curve    | cubic-bezier(0.42, 0, 0.58, 1)      | `spec:AST-094` FR4      |
+| `timing.curves.viewChange`      | curve    | cubic-bezier(0.25, 0.1, 0.25, 1)    | `spec:AST-094` FR4      |
+| `timing.stateChangeMs`          | duration | 250 ms                              | `spec:AST-094` FR4      |