Start an Apple Container in Seconds

This is a practical glue layer over Apple's container CLI that bundles three handy steps into one command: create from an image, copy host folders into /sandbox/host, and run an init script inside the container. It's a tidy shortcut for people orchestrating many short-lived macOS sandboxes, though it's narrowly useful (macOS-only) and could use richer examples and error handling to feel more robust.