v0.6.0
fix: engine selection when both Docker and Podman are installed on Mac When both engines are detected, the TUI preflight now pauses and lets the user toggle between them with [tab] before proceeding. Adds --engine flag (docker|podman) for non-interactive and plain-mode installs. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>