Ship Prod

Deploys COMMITTED HEAD only, to the correct Vercel project, then proves the deploy landed. git push to main does not reliably auto-deploy; this skill is the deploy path.

Fixed facts

• Project: qaskills.sh, project ID prj_rDKli4AyhHoXZXV8NHrs92Ncbf4f, org team_DGM6VSs6vhASlhktmHkSqPwn, account luckydutta96
• A decoy project qaskills exists WITHOUT the domain. Never deploy there. Never accept interactive "link this directory?" defaults.
• Build command lives in root vercel.json (shared build && web build); Node must stay 20.x (Neon driver breaks on 24)
• vercel --prod uploads the WORKING TREE, not git HEAD
• .vercel/project.json is gitignored, so fresh worktrees are unlinked: explicit env IDs required there

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