pr-formatting

Create and update pull request descriptions with comprehensive, well-structured content. Use when the user asks to create a PR, mentions "pull request" or "PR", wants to merge a branch, or needs to update an existing PR description. Invokes /git-actions:pr-write (create draft PR) or /git-actions:pr-edit (update PR) commands which analyze commits, generate structured descriptions with testing/deployment notes, and handle approval workflow.