The soma `id` module conflated two concerns: `createId` (wraps Svelte
`$props.id()` for SSR/ARIA element ids — ~200 soma importers, intrinsic to
the headless layer) and `useId` (a generic monotonic counter — 6 importers).
Only the counter is a cross-layer utility.
Move `useId` to a new `$active-uix/id` subpath (mirroring the existing
`$active-uix/prefs` that soma already imports), so any UIX layer — soma,
eidos, demos, apps — can mint client-only ids from a cheap, collision-free
counter without coupling to soma. `createId` stays in soma (its domain).
+ src/uix/active-uix/id/index.ts (useId)
~ soma/id now exports createId only
~ 6 useId importers repointed to $active-uix/id
(floating, toaster, date-field, time-field, accordion-item, internal/arrow)
Output format unchanged (`soma-{component}-{n}`) -> zero behavior change.
`npm run check` 0 errors; toast/accordion/popover verified in browser.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>