docs(skills): document commit step for just-bash ports
Capture the conventional-commits shape used by prior ports, the
explicit-stage rule, and the kefka-specific me@xeiaso.net signoff so
future ports land with consistent commits without re-deriving the
convention each time.
Signed-off-by: Xe Iaso <me@xeiaso.net>
Assisted-by: Claude Opus 4.7 via Claude Code