Migrate a website (alias for /liberate)

This skill is a thin alias for /liberate. It owns no workflow of its own — liberate/SKILL.md is the single source of truth.

To run it: read & follow skills/liberate/SKILL.md inline in this same shared context, treating the input passed to /migrate (the URL or local directory) exactly as /liberate's input. Do everything that skill says — including its "Step R — Route on input type" branch (local directory → dispatch liberate-local; URL → the remote detect/discover/checkpoint/extract path).

That's the whole skill: dispatch to liberate and execute its workflow.