AI Code Review

I have a working visual Builder vibecoded with Claude. A local-first React + TypeScript app on Vite. The codebase functions well but was built fast, so I want an experienced engineer to do a cleanup review: refactor the rough spots, untangle overgrown files, and make the whole thing read like it was carefully written by a human. I vibecoded just to have a rough idea of how it would look but I'm looking for someone to go over it, review it and improve it to be human made. I hand coded some of the components myself via html, css and JS and then linked it to the platform, so it can be a bit messy since there's mixed languages. Stack: React 18, TypeScript, Vite (custom dev-server middleware), Tailwind CSS, Monaco editor, jQuery-based widget runtime inside sandboxed iframes. Bash + Windows Batch launcher scripts. What I'm looking for: Remove any spaghetti code, oversized components, deeply nested logic, duplicated patterns, tangled state or dead code. Must keep the builder tool's integrity without breaking it's functionality. For components I'm using HeroUI but I redesigned it. Please share before/after refactor examples or PRs from past work. Share your availability and rate for a first cleanup pass over ~80 source files.