[manuelmayer-dev]

Summary

A view can now hold several layouts in one UiResponsive node, and the reader draws the one whose size or aspect condition matches its box, so a widget can lay itself out differently at 1x1, 2x1 and 1x2 (and a folder view or dialog per screen) without a round-trip. Older readers get a copy of the default layout as the fallback; see ADR 0094. New public members: UiResponsive, UiResponsiveVariant, UiResponsiveSelection and UiTestHost.SetBox.

Testing

Full solution build with warnings as errors and all .NET suites pass (except the Plugin.Cli build test that cannot resolve the pinned SDK on this machine), plus runtime, web client, desktop UI and the docs build. Verified against a running host with an out-of-process plugin: the deck draws the matching layout per tile size and switches on resize, and the user tested it in the desktop UI.

Plugin SDK / API compatibility

• No public, non-obsolete SDK or plugin protocol contract was removed or changed
• Contracts were only extended additively (new members with defaults, new optional fields, new message types)
• A plugin compiled against the previous SDK still loads and behaves identically (source and binary compatible)

Checklist

• Tests were added or updated where needed
• The change was verified manually where appropriate
• Documentation was updated if the change affects documented behaviour
• I reviewed and understand every submitted change