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+# Integrated modeling and text authoring — Windows development preview
+
+This preview brings together changes made since the September12 rename preview:
+
+- Text workspace and preview-state fixes, plus source-preserving Tab/Shift+Tab
+  indentation with Undo/Redo.
+- Saved Scenario arrangements, occurrence-specific Details and editable service
+  values, with clearer draft recovery and inspector actions.
+- Multiple selection in ordinary and State diagrams; supported Process sibling
+  reordering and exact read-only navigation into reused Process contents.
+- Allocation group assignment and explicit Arrange, plus direct OA/SA Allocation
+  drawing between a performer and compatible unallocated leaf work.
+- Ordinary edge attachment controls, State bend editing and semantic port
+  presentation controls.
+- Traceability-view guidance and cross-layer placement, transition review counts
+  and conflict guidance, and picker-first Escape handling.
+
+Download the Windows x86-64 (`x86_64-pc-windows-gnullvm`) Studio ZIP and its
+SHA256 companion. Verify the ZIP SHA-256, extract the entire folder and run
+`arcadia-studio.exe`, keeping `libunwind.dll` beside both executables.
+The package includes the optional REST server, examples, offline help and
+dependency notices. Read `START-HERE.txt`, `docs/windows-packaging.md` and the
+release's `VALIDATION.md`. Copy a complete example folder before editing; Save As
+alone is not a copy of every referenced source/evidence file.
+
+Use `docs/preview-human-checks.md` for feature checks. Supplemental State/
+Traceability and Allocation/Process model kits provide small examples for the
+new interactions. Their own README files identify their original fixtures and
+expected operations. Report the package version from `package.json`, the model
+and reproducible steps.
+
+Source: **715036e132677dd2bc2fb37ed316d93dc9987aec**. Combined Windows gates
+pass 2,200 tests with eight existing ignores and no failures, strict workspace
+all-target Clippy and the individual desktop/server builds. All 29 required
+regression cases passed. The distributed binaries come from the individual
+Cargo build commands recorded in the [reviewed build evidence](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/src/commit/1a6f2e4f9e8e56a0b4eedd19723a0a0001260300/harness/reviews/prerelease37-final04-complete-20260924.md).
+The supplemental combined desktop/server build also passed, but produced
+different bytes; its binaries were not selected for this package. Individual
+dependency events show differing feature sets; a sole cause is not established.
+
+Verified Studio ZIP: **34,168,661 bytes**, SHA-256
+`5554e32533e3cb2c33fb4143a5a0902733d5a8d47577303cb2842d268e7bc76d`.
+Independent downloads verify this exact archive and all packaged files. Reviewed
+Windows trials cover State bends and Undo/Redo, picker/tool cancellation, guide
+rendering, Save and fresh-process reopen. Packaged REST checks verify conditional
+writes, stale-write rejection and acknowledged-write persistence across an
+owned forced restart. The attached `VALIDATION.md` links the exact raw evidence
+and independent reviews, including a second Windows machine.
+
+This remains an unfinished development-profile prerelease. Crossed Process
+routes and multiline State labels can obscure text or endpoints. Aggregate
+model removal, remaining Scenario group adapters, full public source8 support,
+complete OA/SA acceptance and broad accessibility/DPI coverage remain unfinished.
+Native automation does not cover every held-input gesture. Linux/WSL builds stay
+deferred at the user's request. The private analysis-index work and post-freeze Scenario selection increment
+are excluded. In State Edit transition, Escape dismisses the dropdown; use
+explicit Cancel to close the form. See `VALIDATION.md` for bounded checks and
+retained harness failures/recoveries.
diff --git a/harness/prerelease-integrated-20260924-validation.md b/harness/prerelease-integrated-20260924-validation.md
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+# Integrated Windows preview: validation record
+
+Release: `v0.2.0-preview.integrated.20260924`.
+Source/tag target: `715036e132677dd2bc2fb37ed316d93dc9987aec`.
+Platform: Windows x86-64, `x86_64-pc-windows-gnullvm`, development profile.
+The application remains unfinished. Linux builds/checks are excluded from this
+prerelease at the user's request.
+
+## Obtain and launch
+
+Download the Studio ZIP and its SHA256 companion from this release. Verify the
+archive hash, extract the whole directory and run `arcadia-studio.exe`, retaining
+`libunwind.dll` beside both executables. Read `START-HERE.txt`,
+`docs/windows-packaging.md`, `docs/server.md` and `docs/preview-human-checks.md`.
+Copy a complete example folder before modifying it; Save As does not copy every
+referenced source/evidence file. State/Traceability and Allocation/Process
+companion kits are separate optional examples with their own README scope.
+
+ZIP: `ArcadiaStudio-0.2.0-preview.integrated.20260924-x86_64-pc-windows-gnullvm.zip`.
+34,168,661 bytes; SHA-256
+`5554e32533e3cb2c33fb4143a5a0902733d5a8d47577303cb2842d268e7bc76d`.
+
+| Packaged file | Bytes | SHA-256 |
+| --- | ---: | --- |
+| arcadia-studio.exe | 119,396,352 | `2c03bd6cc3f1110c219e4f57ab94874a121590f83779239a93289b7170664399` |
+| arcadia-server.exe | 40,228,352 | `6cebacc117e46fdab023c6402a5cebd6929fb55993ae8ff6b89cd1c6c1170237` |
+| libunwind.dll | 190,464 | `aa282fa47bb2c4e210cea5e470cdbdca58568f0be0bc73e404d86ab9cd95ef6a` |
+
+## Combined source and product builds
+
+Toolchain receipts identify rustc/Cargo 1.98.1 and Windows gnullvm. The reviewed
+input set contains 3,709 paths whose raw bytes and Git blob IDs match the exact
+source above. All before/after source manifests agree. These are recorded build
+provenance checks, not a claim of reproducible binary output or an authenticated
+build system.
+
+The complete native inventory has 61 harnesses and 2,208 test names. Actual
+workspace execution passes 2,200 with eight existing ignores and no failures;
+all 29 specifically required regression cases individually pass. Three additional
+doctest harnesses contain no tests. Strict workspace/all-target Clippy passes.
+
+```text
+cargo test --locked --offline --workspace --no-run --message-format=json-render-diagnostics
+cargo test --locked --offline --workspace --no-fail-fast -- --test-threads=1
+cargo clippy --locked --offline --workspace --all-targets -- -D warnings
+cargo build -p oa-desktop --bin arcadia-studio --locked --offline --message-format=json-render-diagnostics
+cargo build -p oa-server --bin arcadia-server --locked --offline --message-format=json-render-diagnostics
+```
+
+The package uses the preserved outputs of the two individual build commands.
+Raw Cargo executable events and preservation receipts identify their exact
+bytes. The supplemental literal `cargo build --locked --offline -p oa-desktop
+-p oa-server` also passes, but produces different binaries; its products were
+not substituted into this package. Individual dependency events show distinct
+feature sets, including serde_json/raw_value and Tokio macros/signal. The
+comparison does not establish a sole cause for differences or byte equivalence.
+
+Earlier compile failures, an interrupted inventory attempt and the failed
+State-picker fixture run remain recorded. The corrected fixture measures the
+actual picker slot instead of using canvas-relative coordinates, retains its
+captured-Escape assertion and exact model/source/history checks, and passes both
+targeted and combined tests. It does not change production Escape policy.
+
+- [Complete gate archive](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/src/commit/206f3b969482241e01e2dfc6be955caf31747b89/harness/prerelease37-windows-gates-20260924/final04-complete)
+- [Independent complete-gate review](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/src/commit/1a6f2e4f9e8e56a0b4eedd19723a0a0001260300/harness/reviews/prerelease37-final04-complete-20260924.md)
+- [Independent test reconciliation](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/src/commit/25b2eeab14b5b513127aaefd58e32607592da7a4/harness/reviews/prerelease37-final04-tests-20260924.md)
+
+## Download and contents
+
+Fresh parent downloads verify both Studio ZIP and checksum bytes from draft
+assets25/26. All 565 packaged files match the recorded archive fingerprints;
+all 564 entries in SHA256SUMS.txt pass (the inventory does not hash itself). Paths have
+the expected single root without traversal/duplicates/symlinks, and the selected
+product/runtime hashes match the reviewed builds. All 66 previously reviewed
+documents/examples match source hashes. Companion kit uploads were independently
+downloaded and compared byte-for-byte. These are integrity checks; native behavior
+requires the separate trials below.
+
+- [Download/content review](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/src/commit/2ee740c7/harness/reviews/prerelease37-downloaded-package-20260924.md)
+- [Reproducible inspector and captured output](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/src/commit/2ee740c7/harness/experiments/prerelease37-package-integrity-20260924/README.md)
+
+## Packaged server
+
+Builder package/server evidence is published at `c82eca1eca204dd28994f5c2e8595d8acd2e148e`:
+`harness/prerelease37-windows-gates-20260924/package-server`. The
+[independent raw-evidence review](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/src/commit/c599538ce12f0e505d9f222bddf8e8713900fe43/harness/reviews/prerelease37-package-server-20260924.md)
+passes. Its admitted scope is 16 server requests covering
+full current-schema source/model preservation, comment-only revision2 editing,
+stale-write 412 rejection, and exact revision/ETag/source/model persistence across
+an owned forced restart. The failed first trial expected schema5 bytes despite
+explicit migration; the corrected trial supplies schema7 before its request.
+This does not claim graceful shutdown, in-flight crash or power-loss durability.
+
+Both runs launch the extracted server from an unrelated working directory with
+PATH restricted to the package and Windows directories. Pre/post fingerprints
+match. Both recorded exit1 outcomes result from deliberate Windows termination
+after acknowledged writes. The incomplete REST fixture retains its expected
+`sequence_gap` warning; stderr contains expected listening/store messages.
+
+## Packaged desktop and independent machine
+
+Builder GUI delivery `8a82c0da1fd7130807878cc74598545ef38b5904` contains the
+10,357,627-byte native evidence archive, SHA-256
+`f18c21d262ca78bc9c2d8a339c3389fa31c50a81187cc53cc472f3253cda2815`.
+All 351 members and the actual 565-file package binding were independently
+checked. Ten whole-Project comparisons establish baseline, Clear bends,
+Undo/Redo, source/target attachment-tool cancellation, picker cancellation and
+fresh-process reopening. All repeated saved-source inventories match within
+their intended states. Original screenshots and operator records support Home,
+example, guide, view independence, Show-unplaced dismissal and Add existing
+query/filter retention through dropdown Escape/outside click. A separate second
+Escape cancels that ordinary Add existing dialog.
+
+Both actual Studio runs closed after observed Alt+F4, exit0, empty logs and
+unchanged package inventories. The intervening run02 attempt refused before
+launch because its reused working directory was no longer empty. The original
+attempt/cache inventory remains preserved; a reviewed versioned launcher used
+a fresh unrelated directory and successfully reopened the same saved models.
+No particular cache writer or product crash is inferred from that incident.
+
+Independent-machine delivery `684061ec0f486825886c077a038f06d17896392e` contains
+the 3,425,348-byte QA archive, SHA-256
+`cb084be5f316f1b3be45bc5493fe0cbd6076052198c09f9dbac441b8f2588e63`.
+All 190 records were verified, including download/package/build linkage,
+process receipts, five complete saved-source snapshots and 11 HTTP exchanges.
+The actual downloaded package ran on a separate Windows11 build26200 machine
+with system-only PATH, unrelated cwd and its existing user profile. This is
+not a clean-OS/profile or physically disconnected-network test.
+
+That desktop trial loaded the bundled walkthrough, visually exercised State
+Add bend/Undo/Redo, and verified exact whole-source movement Undo/Redo, other-view
+preservation, explicit Cancel and fresh-process persistence. Only one Activate
+waypoint in readiness_view was added; every other source byte remained original.
+Both Studio runs exited0 with empty logs and unchanged binaries/runtime. The
+Engineering guide and State topic rendered in the packaged app.
+
+In the State Edit transition form, first Escape closed its dropdown; second
+Escape retained the form, and explicit Cancel closed it. Capture26's optimistic
+filename is not its outcome. This follows the existing surrounding form policy;
+it must not be generalized from the different Add existing dialog behavior.
+
+The separate packaged-server trial records 23 explicit checks and 11 HTTP
+exchanges: version/help, readiness/OpenAPI, exact CRLF/Unicode source import,
+conditional name-only revision1→2, stale ETag412 and exact model/source/envelope/
+store readback after an owned forced restart. Exit1 is deliberate termination
+after acknowledged writes, not a spontaneous crash or graceful shutdown claim.
+
+Independent raw-data replayers passed after their code was inspected. They are
+offline evidence reconciliation, not additional native runtime trials. Parent
+also inspected seven full-window originals. These finite workflows do not
+complete every human-checklist case or establish general editing usability.
+
+- [Builder GUI admission review](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/src/commit/4aee179385aa3fefab22aecca668f3058d41024c/harness/reviews/prerelease37-native-gui-20260924.md)
+- [Independent-machine QA admission review](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/src/commit/4aee179385aa3fefab22aecca668f3058d41024c/harness/reviews/prerelease37-independent-qa-20260924.md)
+- [Parent visual cross-check](http://217.177.34.108:3000/sorokin.oleg.edu/ARCADIA-Studio/src/commit/4aee179385aa3fefab22aecca668f3058d41024c/harness/reviews/prerelease37-parent-visual-20260924.md)
+
+## Remaining product limits
+
+This is an unoptimized development prerelease with debug assertions. Crossed
+Process routes and multiline State labels can obscure content. Aggregate model
+removal, remaining Scenario group adapters, full public source8, complete OA/SA
+acceptance, maintained libraries and broad accessibility/DPI coverage remain
+unfinished. Native automation covers finite workflows, not every held-input
+gesture. The private analysis-index work and post-freeze Scenario selection
+increment are not part of this package. Linux remains untested for this release.
+
+Raw host clock discontinuities are retained in evidence; durations are not
+inferred by subtracting those timestamps. Issue37 is the authoritative live
+coordination record. The release tag and this validation identify delivered
+scope; they do not redefine the user-owned application specification.