What I fix
✔ Bugs, broken features, and AI-generated code errors
✔ "Works in preview, breaks in production" issues
✔ Supabase connection, database, and login problems
✔ Google sign-in and user access issues
✔ Stripe and API connection errors (OpenAI, Claude)
✔ Deployment to Vercel, Netlify, or Replit with custom domain and SSL
✔ Mobile layout and UI cleanup