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/video/index.ts

@@ -0,0 +1,4 @@
+import { registerRoot } from 'remotion';
+import { RemotionRoot } from './Root';
+
+registerRoot(RemotionRoot);