Initial scaffold: Shopify recesso (withdrawal) compliance app

- Remix (TypeScript) + Polaris, official Shopify app template
- Prisma multi-tenant schema (Settings, ExclusionRule, WithdrawalRequest, AuditLog, WebhookEvent) on Postgres
- Mandatory GDPR compliance webhooks (data_request, redact, shop/redact) + HMAC handlers
- API version pinned 2026-04, scopes read_orders/read_products
- Fly deploy config; two-env strategy (custom now, public later)
- Dev setup: shopify.web.toml + Vite allowedHosts for tunnels
- Docs: PLAN.md, ANALISI-REQUISITI-LEGALI.md (Art. 54-bis compliance)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Mv83a29B4eFv5ixoj6PoE1

app/.gitignore

@@ -0,0 +1,26 @@
+node_modules
+.DS_Store
+
+/.cache
+/build
+/app/build
+/public/build/
+/public/_dev
+/app/public/build
+/prisma/dev.sqlite
+/prisma/dev.sqlite-journal
+database.sqlite
+
+.env
+.env.*
+!.env.example
+
+package-lock.json
+yarn.lock
+pnpm-lock.yaml
+
+/extensions/*/dist
+
+# Ignore shopify files created during app dev
+.shopify/*
+.shopify.lock