Factor out the wizard code

Factor out the wizard code from bin/commit-wizard.js into its own project
- grabs the name of the wizard
- runs the wizard, asking questions
- checks if the message passes the format
- commits the code if passes the format

Start by reading bin/commit-wizard.js and tracing the existing wizard flow. Separate the wizard's naming, question handling, message-format validation, and commit behavior into its own project while preserving the current workflow. Done means the extracted project provides all four listed responsibilities and pre-git still invokes it successfully.

Written by the indexing model from the issue text.