perf: eliminate global JS bloat and defer autoPlay video

- Dynamically imported ToolCoordinator dependencies
- Removes ~400KB from global layout (html2canvas, framer-motion)
- Implemented IntersectionObserver in VideoSection
- Prevents 1.8MB .webm autoPlay blocking initial network
- Restored SSR hydration visibility for LCP elements in Hero

next.config.mjs

@@ -1,4 +1,6 @@
 import withMintelConfig from '@mintel/next-config';
+import withBundleAnalyzer from '@next/bundle-analyzer';
+import { withSentryConfig } from '@sentry/nextjs';
 
 console.log('🚀 NEXT CONFIG LOADED FROM:', process.cwd());
 
@@ -354,6 +356,10 @@ const nextConfig = {
   },
 };
 
-export default withMintelConfig(nextConfig, {
-  hideSourceMaps: true,
+const withAnalyzer = withBundleAnalyzer({
+  enabled: process.env.ANALYZE === 'true',
 });
+
+export default withAnalyzer(withMintelConfig(nextConfig, {
+  hideSourceMaps: true,
+}));