Upstream update: winui

[github-actions]

Automation detected pending upstream changes for winui.

• Issue key: winui
• Affected skills: winui
• Pending upstream watches: 1

Pending upstream sources:

• windows-app-sdk-release | github_release | microsoft/WindowsAppSDK release
  • Source: https://github.com/microsoft/WindowsAppSDK/releases/tag/v1.8.8
  • Current value: v1.8.8
  • Published at: 2026-05-12T23:04:25Z
  • Detail: v1.8.8 (2026-05-12T23:04:25Z)

Why this matters:

• Review the linked skills when microsoft/WindowsAppSDK ships a new release.

Suggested follow-up:

• Review the upstream release notes or documentation diff
• Update the affected files under skills/
• Update README.md if framework coverage or guidance changed
• Close this issue after the catalog has been refreshed