v0.4.0

This release adds guidance for nested AppKit hosts and shared-view ownership.

Added

• Tear down owned NSHostingView instances in dismantleNSView, and separate host construction from shared-resource transfers.
• Version-limited reproducer evidence for the macOS 27.0.1 reconstruction issue.
• README and skill summaries now include the AppKit hosting guidance.

Validation

• The new example passed Swift 6 typechecking with complete strict concurrency and warnings as errors.
• Window behavior, resource transfer, focus, and accessibility were not run.

Full changes: v0.3.0...v0.4.0