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ARCADIA-Studio/harness/scenario-text-union-20260923.md
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Saved Scenario and Text composition

Branch-specific source composition from root 5960563b23b3f28f83343c283b7c156bf248994a and Scenario/inspector 14e7e6aa46f59346c7a9a478fc9498fd0b496aaf. This is an unverified integration candidate, not a release or completed native gate. Live integration/release ownership remains with the parent session and Gitea #27.

Source decisions

The functional Scenario delta is 208268c..14e7e6a under crates/: typed activations, saved layout and source lifecycle, complete geometry, scoped navigation and spacing, Details/Properties, arrangement picker and fixed inspector actions. Applying that delta with three-way content reconciliation avoids replaying historical work independently integrated by root. Root's instructions, user specification, records, dependencies, vendor patch and documentation are retained; old live ledgers are not imported. Attachments, State bends, latest transition work, private source8 and resize are separate.

The lossless writer retains root's CompleteForEdit comparison authority and Compact/CompactValues insertion templates. Scenario EditContext is threaded through the same record/list writer and keys only Diagram.layout.Scenario rows by their qualified identity. Authored layout none survives unrelated changes; clearing a real payload removes it and retains comments. No global null default was added to the comparison representation.

App admission preserves current TextWorkspace/source/allocation/navigation and rename-scroll envelopes before shared boundary effects. Scenario spacing and representation/visit checks also run before those effects. Scope input-owner equality now includes Scenario representation and visit. Current source Tab and selection behavior are retained, as are passive WorkDrag reveal exceptions.

Root intentionally removed the obsolete panel-focus mode and Canvas button. This integration retains that always-active canvas policy. Saved Scenario Details opens the current inspector and dismisses its outline without replacing the view or camera. Peer tests formerly hiding/restoring panels now exercise the visible inspector and retained selection/view/camera. F6/Tab logical keyboard ownership and root's same-batch suppression remain unchanged.

Typed hit roles retain the root activation-priority rules and boundary paint. The derived sequence helper remains available to root's production deletion eligibility guard; peer's test-only gate is inappropriate with that caller. Properties uses the corrected two-child outer column with its Scrollable at child 1, preserving the Properties/Connections reconciliation fix.

Verification to perform after compiler lease

Rustfmt parsing and Git whitespace/conflict-marker checks precede the source commit. No compiler, tests or GUI have run for this candidate at this checkpoint. New discriminating tests combine ordinary omitted/authored defaults with Scenario row reorder, alias rename and layout clear, and retain a live saved spacing gesture across stale Text commands and prior Scenario visit messages.

First compile/list core and desktop tests on the frozen candidate, inspect the actual inventory, and resolve union-only API/literal failures. Run core scenario_layout, references::scenario_layout_tests, default-omission and source lifecycle checks; desktop Scenario/spacing/Details/navigation, source_indentation, rename-scroll, source-input and canvas-focus tests; HTTP Scenario layout transaction/export/restart checks. Then full workspace tests, strict workspace/all-target lint and matching GUI build. Existing peer totals are not additive acceptance targets.

Native combined acceptance must include saved view/picker/Details, lower-field Apply/Revert and Properties/Connections return, spacing plus cancellation, Text Tab/undo/edit/Apply and return, exact view/visit restoration, save/reopen, and preserved active keyboard focus. No native or cross-platform claim follows from source composition. Existing smaller-window and accessibility limits stay in force until separately exercised.

Later attachment integration must adapt new EdgeRoute literals, notably core scenario_layout tests. Later transition integration must retain Scenario's architecture-destination exclusion while adding counterpart search/footer.