- Add `keep_alive` parameter to `container_start`
- Implement logic to restart containers with `tail -f /dev/null` after successful entrypoint exit
- Update `podman_pull_and_export` to also extract image metadata
- Enhance `create_crun_config` to use extracted image metadata (ENTRYPOINT, CMD, ENV)
- Refactor test suite to use `keep_alive: true` for Alpine containers
