Lovable

Build me a local brief-to-app generator to replace Lovable. Requirements: - A Node 22 CLI: `vibe new "a habit tracker with a weekly grid"` scaffolds a Vite + React + TypeScript app into ./apps/<slug>, then edits it in a loop. Generated apps persist to plain JSON or SQLite via better-sqlite3. - Call the Anthropic or OpenAI API with the key from .env and ask for whole files back as JSON, path plus contents, never prose I have to dig out of a code fence. - Every round is a git commit on a branch and prints the diff first. `vibe undo` is a git revert, so nothing the model does is unrecoverable. - After each round run `npm run build` and `tsc --noEmit`, feed failures back, retry three times, then stop and show me the error instead of looping. - `vibe preview` runs the Vite dev server on localhost:5173. No accounts, no telemetry, nothing leaves my machine except the model calls. - Keep the transcript, file tree, and last diff in .vibe/session.json inside the app, resend only the files I named, and print tokens and cost per round. - Out of scope: hosted previews, one-click deploy, and team collaboration. Do not build a web UI, the terminal is the interface. - README: which key to set, what a typical app costs, and the honest warning that the output is only as good as the model behind it.