Agent Skills: scaffold

Orchestrates new repo creation — required before setting up any batterie Python package. 5-step workflow (interview, plan, init script, CLAUDE.md fill-in, conformance validation) ensures every repo starts with hatchling, src layout, bon, and working tests. Handles greenfield, adopt, and extract modes. Triggers on 'create a repo', 'new project', 'scaffold', 'init repo', 'set up a new package', 'make this a proper repo'. (user)