# Integrated checkpoint — 2026-09-11

Codex-ytr83r, isolated branch `codex/canvas-union-ytr83r-20260911`. Current source `cb91525` adds the three-file grapheme shortening correction to the combined `a57c334b302eb13352b4bb65df1c75d94d002348` source checkpoint; its remaining Windows gates and matching native checks remain pending. The a57/108b checkpoint evidence remains preserved; this source statement is not a release claim. Main checkpoint `32334c6` / production `865483b` and its existing package remain preserved. The full [user goal](../PROJECT_GOAL.md) remains incomplete. Live [canvas integration](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/issues/2), [native/release acceptance](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/issues/5) and the [project overview](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/issues/1) retain ownership and plans. This file scopes code and evidence.

## Verified code and capabilities

Source `cb91525` changes the shared display helper to preserve extended grapheme clusters and records the direct locked dependency edge. Independent source review found no remaining actionable finding; four focused shortening tests passed at 20:59:36.0538079 UTC, with 752 filtered. Full desktop, strict Clippy, build and matching native checks remain pending in this record. The corrected 529-file input freeze supersedes only the premature pre-resolution freeze, against which no tests/build ran. [Correction, exact freezes and limits](release-grapheme-shortening-ytr83r-20260911.md), [verbatim independent review](release-grapheme-shortening-review-20260911.md).

The isolated `a57c334` union selectively combines peer `a31b40d` canvas/chooser/form prerequisites with the preserved B4 lifetime renderer, contextual source/minimum-card corrections and responsibility-preserving child-work creation. Pan-aware header/Create clips and pointer inversion received independent source review. Windows lifecycle **27**, full desktop **752**, strict desktop all-target Clippy and Studio build passed; all 529 frozen inputs matched HEAD and remained unchanged. The new unoptimized GUI is `69DBB90F…`; matching a57 native checks are in progress locally; complete acceptance remains pending. [Canvas union checkpoint, source/gate archives and exact limits](release-canvas-union-ytr83r-20260911.md).

Earlier published checkpoint `3ade397008cffe826d5f5a70e7c0233159e3bd42` contains production `29084050a7c020e0fb488be37c6e1ab235769cc0`; push and exact remote readback passed. It combines prior named behavior creation/history integration (`c81e285`, `e207b04`), corrected creation-oracle evidence (`b853a1e`), CLI-only integration (`023e3a8`) and B4 lifecycle rendering.

B4 renders local lifetimes, branch-local activation termination, neutral incomplete lanes, Create capsules and Delete markers with original occurrence identity. Real Windows OA/SA six-case matrices and separate name-only Save/Undo/Redo/reopen workflows passed complete independent Project, reachable-source and physical-file comparisons. These are bounded fixture checks, not complete product usability acceptance.

- [Native lifecycle observations and limits](release-lifecycle-native-ytr83r-20260911.md).
- [OA evidence archive](lifecycle-native-ui-oa-archive-20260911.md) and [SA evidence archive](lifecycle-native-ui-sa-archive-20260911.md).
- [Lifecycle implementation and independent findings](release-lifecycle-render-ytr83r-20260911.md).
- [Creation and source integration evidence](release-staged-source-integration-ytr83r-20260911.md).

Source `321897fd55af9e07afa2c6ebf1e50be49e86f7d9` integrates the published contextual source-creation/minimum-card corrections from b2c3e540 with B4 and the header clipping correction. Its own Windows desktop all-targets gate passed 704 tests. [Exact selective integration, independent union review and Windows results](release-contextual-integration-update-ytr83r-20260911.md).

Published production `865483b4c66361a01fe0d9e731859220bafb4136` adds the reviewed child-work correction: first refinement transfers existing Allocation and RoleAssignment identities, metadata and artifact references to the child; later siblings inherit only a unique performer. OA/SA regressions cover nested children, roles, folded grouping, unallocated/mixed controls and exact history. The old extracted Studio `BF9C2E61…` passed OA first-child, sibling and grandchild Save/Undo/Redo checks, then confirmed OA reopen/Save and the SA first/sibling/grandchild, Undo/Redo and reopen/Save continuation. Original identity carriers and complete source/physical snapshots matched. These are native results for **865483b/BF9**, not a57/69DB. [Original OA evidence](experiments/native-child-oa-865483b-20260911/README.md), [closed continuation](experiments/native-child-continuation-865483b-20260911/README.md), [independent continuation review](release-native-child-continuation-review-20260911.md), [fixture/oracle](fixtures/child-work-native/README.md) and [issue4](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/issues/4) preserve the exact scope.

## Verification scope

On this Windows host, core all-targets passed433 tests with one intentionally ignored scaling probe; that probe separately passed with unoptimized timings. Production29084050 passed focused lifecycle22 and full desktop675 tests (the22 are included in675), and the ordinary GUI build/launch. An equivalent test-helper let-chain correction subsequently passed strict workspace/all-targets Clippy and its focused regression1/1. These results predate the newly identified header-rendering correction.

- [Exact current-host logs and inputs](experiments/lifecycle-native-ytr83r-20260911/).
- [Test-only Clippy correction](lifecycle-clippy-correction-ytr83r-20260911.md).
- [Current-host toolchain setup](release-host-bootstrap-ytr83r-20260911.md).
- [Independent Windows gap review](release-windows-gap-review-ytr83r-20260911.md).

The closed 321897f Windows gate passed 704 desktop tests with zero failed/ignored/filtered; all 261 recorded build inputs remained unchanged. Matching server `ABA87A5F…` passed semantic HTTP checks (204 schemas, 19 values, 9 rejected invalid shapes) and the corrected REST probe's 25 requests. [Closed runtime evidence](experiments/windows-runtime-321897f-20260911/README.md) preserves both earlier source-version failures. [Earlier integration checkpoint evidence](experiments/contextual-lifecycle-integration-ytr83r-20260911/README.md) preserves server/CLI 68 across 7 targets, schema 72/204 after the missing-jsonschema correction, and the old GUI's wide-name passive Save comparison.

The later 865483b Windows desktop gate passed **707 tests**, including the three focused child-work regressions, with zero failed/ignored/filtered. All 261 recorded build inputs stayed unchanged. The matching debug GUI build and strict **desktop-only** all-targets Clippy passed; child-work and staged-source checker compilation/admission also passed. [Closed gates and exact inputs](experiments/windows-gates-865483b-20260911/README.md). These checks do not establish the remaining native rendering or packaged acceptance.

The extracted package's unchanged server `ABA87A5F…` passed the actual HTTP schema checks (204/19/9) and 25-request REST editing/persistence/restart probe with a restricted process PATH and unrelated working directory. Seven raw response pairs and exact source snapshots matched; all five test-owned server processes stopped. The first REST run's PowerShell-added PATH directory is preserved as historical evidence; the corrected restricted-PATH rerun is authoritative. [Packaged server evidence](experiments/packaged-server-865483b-20260911/README.md). This completes bounded server runtime acceptance, while the new Windows preview remains unpublished pending the separate GUI checks.

## Material limitations

Earlier native wide Latin/CJK checks found neutral lifeline header text overflowing its card while Create labels stayed contained. The [header correction](lifecycle-header-overflow-correction-ytr83r-20260911.md) is included in 865483b and retained in a57. Actual corrected wide-W/CJK observations in BF9 show bounded headers and Create labels, including selected zoom, scroll and minimum-window cases. Both complete wide and cluster sources remained unchanged after passive Save. Cluster checks exposed a separate scalar-shortening defect: an accent or joined emoji can be split at the label cutoff. Full Unicode presentation and matching a57 native acceptance remain open; see the [native typography record](experiments/lifecycle-header-correction-native-865483b-20260911/README.md).

The earlier capture failures and pending Open dialog are historical: later confirmed OA and SA reopen/Save actions are preserved in the [continuation archive](experiments/native-child-continuation-865483b-20260911/README.md). Its first OA `reopened-1948` receipts remain data-only evidence; they are not promoted to successful-open observations. Contextual-source workflows, matching new-canvas pan/zoom/clipping/focus behavior and complete combined native/package acceptance remain unfinished. The BF9 Home page, scenario guide and bundled water-pressure example opened; one normal Alt+F4 then completed, with the process absent and empty stdout/stderr. The [closed Home/Guide/normal-close archive](experiments/packaged-gui-close-865483b-20260911/README.md) preserves these bounded old865/BF9 observations and complete package readback. No application exit code was captured; no exit0 or new-source native pass is inferred.

The selected chooser/canvas union now has a57 source and Windows gate evidence; broader persistent graphical manipulation and separate text-navigation contributions retain their own integration/acceptance boundaries. Calculations, quantities/units, maintained libraries, practical large-model textual workflows, complete OA↔SA engineering parity, documentation and fresh cross-disciplinary review remain full-goal requirements. See the [analysis proposal](release-analysis-semantics-design-20260910.md), [library proposal](release-libraries-semantics-design-20260910.md), [text-authoring design](release-textual-authoring-design-20260911.md) and [decisions](DECISIONS.md) for attributed design evidence, not completed implementation claims.

## Platform and published deliverables

**Linux setup, downloads, builds and checks are paused by explicit user instruction until the user reports networking resolved and instructs resumption.** Ubuntu26.04/WSL2 shell execution was observed; guest networking remained unavailable. Offline preparation was a workaround, not a network fix or Linux acceptance. Host VPN settings were not inspected or changed. [WSL evidence](release-wsl-postboot-ytr83r-20260911.md) and [preserved offline inputs](release-linux-offline-preparation-ytr83r-20260911.md) retain exact outcomes.

Peer Codex-9e8r6t published the separately verified [Windows contextual prerelease](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/releases/tag/v0.2.0-preview.contextual.20260911), source `b2c3e540`; [its publication handoff](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/issues/2#issuecomment-406) binds its artifacts and original-host checks. It is not a B4 release from this branch.

## Record navigation

The [one-time record migration](history/2026-09-11-ytr83r-record-migration/README.md) preserves the exact prior STATE ledger and marks PLAN/TASK_LEDGER superseded. [Earlier integration history](history/2026-09-11-ytr83r-integration/README.md) preserves source-attributed older results. Historical leases, failed approaches and next-step wording do not override current Gitea coordination or the Linux pause.