Follow GitHub Flow for branching, commits, PRs, review, and merge. Use when creating branches, opening or updating pull requests, handling review comments, merging, resolving conflicts, daily git hygiene (status/stash/rebase/amend/bisect), or when the user mentions GitHub Flow / PR / MR / 开 PR / 提 PR / 合并分支 / 分支流程 / git 卫生.
