Adopt GitHub Flow + release branches, replacing "everything straight to main
plus a tag" which caused the 1.4.2 pain (a fix had to be retro-fitted to the
released version, forcing a remote-tag delete + full re-upload).
- main: only long-lived branch, always deployable, accumulates the next version
- feature/<desc>: born from main, merged back when done
- release/vX.Y.Z: cut from main, tagged, installers built from the tag
- hotfixes land on the release branch AND are cherry-picked back to main so
main never loses a fix
- end of lifecycle = retire the release branch (delete; or keep for long-term
maintenance), no wholesale merge back — hotfixes already flowed
- explicitly no rebase of main, no release-branch-merge, no quick edits on main
Companion release checklist includes the upload lessons (PUT --http1.1) and the
replace-artifacts-by-deleting-the-tag catch.
Docs in docs/git-workflow.md (zh) and docs/git-workflow-en.md, linked from both
READMEs.
