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/components/ui/error-boundary.tsx

@@ -1,6 +1,7 @@
 'use client';
 
 import { Component, ReactNode } from 'react';
+import { trackError } from '@/lib/analytics';
 
 interface Props {
   children: ReactNode;
@@ -24,6 +25,7 @@ export class ErrorBoundary extends Component<Props, State> {
 
   componentDidCatch(error: Error, errorInfo: React.ErrorInfo) {
     console.error('Error caught by boundary:', error, errorInfo);
+    trackError('react_error', error.message, true);
   }
 
   render() {