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/ContactForm/utils.ts

@@ -0,0 +1,6 @@
+import { calculatePositions as logicCalculatePositions } from '../../logic/pricing';
+import { FormState } from './types';
+
+export type { Position } from '../../logic/pricing';
+
+export const calculatePositions = (state: FormState, pricing: any) => logicCalculatePositions(state as any, pricing);