Unifies the history/feed pattern (per-item status + evaluative intent) with the
progress/stepper pattern (a root `active` index) in one component. Two
independent color axes: status drives the marker treatment (filled / ring /
hollow); intent overrides the hue via the canonical data-intent channel and
feeds the `emerge-reveal` event in live feeds.
- morfo: <ol>/<li> contract — data-status, data-intent, aria-current; one
`emerge-reveal` event (fromProp intent); scope soma/sema/eidos.
- soma: Provider + Item — status derivation (active|explicit), auto-index,
live-feed emission gated to appends. 4 unit tests.
- sema: emerge-reveal pack (soften gain via op:add + haptic tick).
- eidos: rail · markers · connectors; vertical/horizontal + start/end/alternate;
independent `size` (type) and `markerSize` (circle) axes; connector
solid/dashed/dotted; live-feed reveal. Markers hold icons or numbers.
- demo: web/routes/uix/components/timeline (6-tab interactive testbed) + nav.
Connector runs behind the markers (continuous rail); horizontal entries stack
via flex; horizontal-alternate pins fixed-height rows for a straight rail.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
