Add FORMA static storefront, integrations, Turborepo workspace, Shopify theme scaffold, docs and CI checks

[feispla]

Motivation

• Provide a deployable static FORMA storefront with safe runtime integration hooks for Shopify, Supabase and Chatbase while keeping secrets out of git.
• Reshape the repo into a Turborepo-compatible monorepo with separate deployable apps/ and shared packages/ to support CI, local smoke tests and developer workflows.
• Add a minimal Shopify Liquid theme scaffold and a small Ruby adapter to support future server-side Admin work without changing the static Vercel-first deployment model.

Description

• Add a full static storefront and assets including index.html, assets/store.js, assets/store.css, assets/integrations.js and a demo assets/config.js with blank credentials and feature flags.
• Introduce monorepo layout and metadata: package.json, package-lock.json, turbo.json, workspace apps (apps/storefront, apps/docs) and packages (packages/ui, packages/config, packages/storefront-data).
• Add operational scripts and checks: scripts/smoke-static.js, scripts/smoke-app.js, scripts/verify-files.js, scripts/github-plain-diff.js, scripts/prepare-shopify-upstream.sh, and scripts/turbo-doctor.js plus supabase migrations and vercel.json configuration.
• Add Shopify theme scaffold and Ruby adapter under shopify-theme/ and shopify-ruby/ with specs and helper scripts, plus documentation and process files (docs/*, CLAUDE.md, .github templates) and a GitHub Actions job .github/workflows/check.yml to run npm run check on PRs and pushes.

Testing

• No automated tests were executed as part of this rollout; the change adds CI that will run npm ci and npm run check for future PRs and pushes via .github/workflows/check.yml.
• The repo now includes local smoke/verification scripts to validate deployable apps and static assets such as node scripts/smoke-static.js, node scripts/smoke-app.js and node scripts/verify-files.js which are invoked by npm run check.

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Codex Task