chore: overhaul infrastructure and integrate @mintel packages

- Restructure to pnpm monorepo (site moved to apps/web)
- Integrate @mintel/tsconfig, @mintel/eslint-config, @mintel/husky-config
- Implement Docker service architecture (Varnish, Directus, Gatekeeper)
- Setup environment-aware Gitea Actions deployment

apps/web/src/components/Landing/ConceptIllustrations.tsx

@@ -0,0 +1,3 @@
+'use client';
+
+export * from './Illustrations';