Add @semantic-release/git to the release plugin chain so the bumped
package.json, release-policy.json, and packages/cli/package.json land
back on the release branch after publish. This keeps the published npm
version and the in-repo version files in sync, so local builds from
main report the released version (e.g. ktx --version and the daemon
/health endpoint via KTX_DAEMON_VERSION).
Also widens assertPublicNpmReleaseTag to accept branch-<sanitized> tags,
unblocking branch RC publishes that pass through update-public-release-
version.mjs.
