feat(performance): optimize Core Web Vitals with CSS animations and lazy analytics

- Replace framer-motion with CSS animations in TrustBadges, AsSeenIn, ProblemSection
- Create AnalyticsProvider client component for OpenPanel lazy-loading
- Fix HeroVideo CLS with explicit aspect-ratio (4/3)
- Remove deprecated swcMinify from next.config (enabled by default)
- Add optimizePackageImports for better tree-shaking

next.config.ts

@@ -69,7 +69,7 @@ const nextConfig: NextConfig = {
     ],
   },
   experimental: {
-    optimizePackageImports: ["lucide-react", "framer-motion"],
+    optimizePackageImports: ["lucide-react", "framer-motion", "clsx", "motion"],
   },
 };