Deploy to Vercel

Deploy any project to Vercel. Always deploy as preview (not production) unless the user explicitly asks for production.

The goal is to get the user into the best long-term setup: their project linked to Vercel with git-push deploys. Every method below tries to move the user closer to that state.

Step 1: Gather Project State

Run all four checks before deciding which method to use:

# 1. Check for a git remote
git remote get-url origin 2>/dev/null

# 2. Check if locally linked to a Vercel project (either file means linked)
cat .vercel/project.json 2>/dev/null || cat .vercel/repo.json 2>/dev/null

# 3. Check if the Vercel CLI is installed and authenticated
vercel whoami 2>/dev/null