Standalone crate that reads devcontainer.json (with JSONC support), fetches
OCI Features via oras, and produces a resolved config containing a generated
Dockerfile, lifecycle hooks, environment variables, and forwarded ports.
Supports image, Dockerfile, and Docker Compose modes with devcontainer
variable substitution. No coupling to arc-workflows or DaytonaSandbox.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
