feat(showcase): page-local state demo + flip variables @experimental→live (ADR-0049)#2269
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📓 Docs Drift CheckThis PR changes 1 package(s): 91 hand-written doc(s) reference the affected code and may need an implementation-accuracy re-verification:
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…live (ADR-0049) The page-variable end-to-end loop is now implemented in objectui (page state injected as `page.<var>`, element:record_picker writes via `source`, visibility gates live), so promote PageSchema.variables from @experimental to live and ship a worked example. - spec: replace the @experimental marker on PageSchema.variables with live docs; enrich PageVariableSchema (binding direction: a variable names its writer component via `source`). - spec liveness ledger: flip page.variables experimental→live with the objectui consumer cited (packages/spec/liveness/page.json) — passes check:liveness. - showcase: new master/detail page `showcase_page_variables` — a record picker writes `selectedProjectId`; a detail panel gates on `page.selectedProjectId`. Wired into navigation + the app config. - dogfood test: asserts the wiring is coherent and the gating predicates flip with the variable (mutually exclusive empty/detail states) + registration. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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…ig removal (#2268) (#2272) #2268 hard-removed 16 dead exports (6 from ./ui Blank/RecordReview, 10 from ./studio PageBuilder/Canvas/Palette) and #2265 added PAGE_TYPE_ROADMAP, but the committed api-surface.json snapshot was never regenerated — so check:api-surface has been red on main for every PR touching packages/spec/** (surfaced on #2269). Regenerate the snapshot to match the built surface. Diff is exactly the 16 intentional removals + PAGE_TYPE_ROADMAP; api-surface-signatures.json unchanged; the frozen downstream-contract gate is unaffected (it never referenced these symbols). Kept at minor (not a major bump) as a deliberate, documented exception to the ADR-0059 §4 freeze contract — see the appended note in the #2268 changeset. The removed symbols are config for renderless page types with no plausible functional consumer; the pre-publish hotcrm live gate guards any real break. Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
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What
Promotes
PageSchema.variablesfrom@experimentalto live (ADR-0049) and ships a worked example. The end-to-end page-variable loop is now implemented in objectui (companion PR objectstack-ai/objectui#1957): page state is injected into the expression context aspage.<var>,element:record_pickerwrites a variable viasource, andvisibilitypredicates gate live.Changes
packages/spec/src/ui/page.zod.ts) — replace the@experimentalmarker onPageSchema.variableswith live docs; enrichPageVariableSchema(binding direction: a variable names its writer component viasource, e.g.{ name: 'selectedProjectId', source: 'project_picker' }).showcase_page_variables: a record picker writesselectedProjectId; a detail panel gates onpage.selectedProjectId != ''(empty-state hint on== ''). Wired into navigation + the app config.test/page-variables.test.ts) — asserts the wiring is coherent (variable bound to a real picker id) and the gating predicates actually flip with the variable (mutually-exclusive empty/detail states), plus config + nav registration.Verification
Requires objectstack-ai/objectui#1957 for the runtime behavior.
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