feat(analytics): enhance Google Analytics with privacy compliance and comprehensive tracking

- Add automatic route change tracking for SPA navigation
- Implement Cookie consent banner for GDPR compliance
- Add performance tracking (LCP, FID, CLS Web Vitals)
- Add outbound link click tracking
- Integrate contact form submission tracking with conversion events
- Add CTA button click tracking in hero section
- Integrate error tracking in ErrorBoundary component
- Extend analytics utility library with 15+ tracking functions
- Configure IP anonymization and privacy settings
- Remove unused test files and deployment scripts
- Update case studies to include only specified cases
- Fix mobile navigation active state issues
- Fix lint errors in test files and components

BREAKING CHANGE: Google Analytics now requires user consent before tracking

src/app/(marketing)/home-content.tsx

@@ -7,6 +7,12 @@ import { HeroSection } from "@/components/sections/hero-section";
 import { SectionSkeleton } from "@/components/ui/loading-skeleton";
 import type { ReactNode } from 'react';
 
+declare global {
+  interface Window {
+    __isProgrammaticScroll?: boolean;
+  }
+}
+
 const ServicesSection = dynamic(
   () => import('@/components/sections/services-section').then(mod => ({ default: mod.ServicesSection })),
   {
@@ -77,7 +83,11 @@ function HomeContent({ heroStats }: { heroStats: ReactNode }) {
     const scrollToSection = () => {
       const targetElement = document.getElementById(section);
       if (targetElement) {
+        window.__isProgrammaticScroll = true;
         targetElement.scrollIntoView({ behavior: 'smooth', block: 'start' });
+        setTimeout(() => {
+          window.__isProgrammaticScroll = false;
+        }, 2000);
         return true;
       }
       return false;
@@ -96,7 +106,7 @@ function HomeContent({ heroStats }: { heroStats: ReactNode }) {
   }, [searchParams]);
 
   return (
-    <main className="min-h-screen bg-white dark:bg-(--color-bg-primary)">
+    <main id="main-content" className="min-h-screen bg-white dark:bg-(--color-bg-primary)">
       <HeroSection heroStats={heroStats} />
       <ServicesSection />
       <HomeSolutionsSection />