openswiftui-pr-authoring

# OpenSwiftUI Pull Request Authoring - Write PR titles and bodies in English and scope them to the committed diff. - Use a concise Conventional Commits title that describes the outcome. Follow the [contributor guide](../../../CONTRIBUTING.md#commit-messages-and-pull-request-titles). - Use `## Summary` for the main body. Start the first word of every summary bullet with a capital letter, and keep the bullets parallel and outcome-focused. - Omit build commands, test invocations, contributor-workflow boilerplate, remaining TODOs, and unrelated follow-up work. - Keep internal investigation methods out of public wording. Describe results in terms of compatibility, behavior, validation, or implementation. - For stacked PRs, describe only the current layer. Add a `## Stack` section to a dependent PR and identify its direct dependency as `Depends on #<number>`. - Drafting a PR does not authorize pushing branches or creating or updating a PR. Present the title and body for review. Once the user explicitly approves the relevant remote actions, proceed without asking for the same approval again.