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/Root.tsx

@@ -0,0 +1,34 @@
+import { Composition } from 'remotion';
+import { ContactFormShowcase } from './compositions/ContactFormShowcase';
+import { ButtonShowcase } from './compositions/ButtonShowcase';
+import './style.css';
+
+if (typeof window !== 'undefined') {
+    (window as any).isRemotion = true;
+}
+
+export const RemotionRoot: React.FC = () => {
+    return (
+        <>
+            <Composition
+                id="ContactFormShowcase"
+                component={ContactFormShowcase}
+                durationInFrames={1500}
+                fps={60}
+                width={1080}
+                height={1350}
+            />
+            <Composition
+                id="ButtonShowcase"
+                component={ButtonShowcase}
+                durationInFrames={300} // 60fps * 5s
+                fps={60}
+                width={1080}
+                height={1350} // 4:5 aspect ratio for LinkedIn/social
+                defaultProps={{
+                    text: "Let's work together",
+                }}
+            />
+        </>
+    );
+};