WinUI App Use this skill for WinUI 3 and Windows App SDK work that needs grounded setup guidance, app bootstrap, modern Windows UX decisions, or concrete implementation patterns. Required Flow 1. Classify the task as environment/setup, new-app bootstrap, design, implementation, review, or troubleshooting. 2. If the task is about preparing a machine for WinUI, auditing readiness, or creating a brand new app, start with the bundled setup-and-scaffold flow in this skill before broader design, implementation, or troubleshooting work: - Pick the app name when the request is for a new app. - Use th…