- Add get_kind_cluster() to detect existing kind clusters
- Modify create_cluster() to reuse existing clusters automatically
- Add 'laconic-so deploy k8s list cluster' command
- Skip --stack requirement for k8s subcommand
This allows multiple deployments to share the same kind cluster,
simplifying local development workflows.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>