Eliminates `Provider.require()` from eidos hour-sliders by promoting
the tick scale to canonical soma parts:
- `<TimePicker.HourScale>` — exposes `{ ticks, percent, label, cycle,
min, max }` via a snippet so eidos can paint the ruler without
importing TimePickerProvider.
- `<TimeRangePicker.HourScale>` — same shape for the range variant.
Scale is global (both endpoints share the cycle), so no endpoint
prop.
Eidos hour-sliders become pure composition + paint via snippet props.
No JS coupling between eidos and the soma provider class.
Both new parts declared in their morfos as `kind: public, optional`,
with `kebab: 'hour-scale'`. Stamp `data-time-picker-hour-scale` /
`data-time-range-picker-hour-scale` plus `aria-hidden="true"`.
Test result unchanged: 2391/2397 passing. No regressions.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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