docs(local-dev): document noetl-dev VM swapfile + local kind hygiene Adds local-kind-vm page: VM shape, the 8 GiB /var/swapfile added 2026-07-08 (dd on xfs, swappiness=10, fstab-persisted), and a re-add recipe for VM recreates. Cross-linked from Home + _Sidebar. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>