POC for redoing Layout Batch 1 demos to follow DEMO_AUTHORING_GUIDE.
Box becomes the reference template for the remaining 7 primitives.
Demo follows the canon shape:
- Header with eyebrow + 4 meta pills (parts, events, props, scope).
- Stage permanently rendered with 3 nested boxes + trace strip
showing live display/padding/gap state.
- 6 tabs in canonical order (Live · API · Morfo · Sema · Recipe · A11y).
- Live tab: 7 controls + reactive soma/eidos snippets.
- API tab: 6 subsections grouped by concern (sizing / spacing /
display+position / flex/grid item / escape hatch / reference
comparison vs radix-themes / chakra / mantine).
- Morfo / Sema / Recipe / A11y tabs each populated with the contract
appropriate to a passive eidos-native primitive.
Architectural fixes (heredados de air, ahora correctos):
- `gridColumn`, `gridRow`, `gridArea` move from `<Grid>` to `<Box>` —
these are item placement props, they belong on the CHILD that
declares its slot, not the container.
- Add `placeSelf` to Box (grid item shorthand for align-self +
justify-self).
- Grid recipe + props updated accordingly; comment clarifies that
item placement lives on Box.
Add `src/uix/morfo/components/box.ts` (scope `eidos`, 1 part, 0 events
with justification comment). Box demo updated lede to point at Flex /
Grid for container-side props (Radix Themes split, not Chakra
everything-on-Box).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
