Lands the eidos `<WordsColorRow>` (Text / Background pickers inside the
block inspector) on top of the new base-Block words engine + drops 3
obsolete audit MDs.
ColorPicker fixes surfaced while wiring it into the inspector — all
documented in `soma/components/color-picker/README.md` §Integration
pitfalls:
1. Eidos wrapper now declares `format = $bindable('hex')` (matches
soma's default). Without it, `bind:format={undefined}` threw
`props_invalid_value` on every mount → render loop.
2. Eidos wrapper now forwards `ref` to `ColorPickerProvider.create`.
Without it, `attachRef` was never built and any `runtime.trigger`
targeting `provider` threw `SomaRuntimeTargetError`.
3. `triggerClose` falls back to the picker provider's own DOM when
`runtime.partRef('content')` returns null (content is registered on
the Popover's runtime, not the picker's — re-exported part).
4. WordsColorRow draft-pattern: `$effect` reads draft inside `untrack`
so it doesn't overwrite mid-drag value, and `onValueChange` catches
the `Clear` programmatic transition (`onValueChangeEnd` doesn't fire
on Clear).
CSS: `contain: layout style` on `[data-color-picker-area]` and
`scrollbar-gutter: stable` on the picker popover content — stops the
area from shaking during drag when the trigger's ValueText hex changes
width or the popover scrollbar toggles.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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