The earlier fix to handle stopped containers in the add flow used
`msg_info` for the "Container is stopped — mount will activate
automatically on next start" line. `msg_info` is the spinner-start
half of the msg_info/msg_ok pair — it never gets closed here
because there's nothing to wait on, so the spinner glyph stays
visible (⠋) right before the "Press Enter to continue" prompt.
Switch to `msg_ok` so the line renders as a clean static success
mark, matching the visual style of the other terminal messages.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>