An over-broad `git add -A` in the previous commit swept a local dev-server entry for an unrelated application into .claude/launch.json. It pointed at a path outside this repository and was not Prettier-formatted, so it failed format:check. Restored to the version on main. Also runs Prettier over migrate.ts, which the dead-code removal left unformatted. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>