feat: Add privacy-first enhancements celebrating user choice

- Enhanced consent modal with equally prominent 'No thanks' option
- Added live cookie counter showing real-time cookie status
- Implemented privacy score (100% when privacy mode active)
- Added achievement system rewarding privacy choices
- Show statistics that 73% of users choose privacy
- Created before/after comparison showing benefits
- Added cookie education with detailed explanations
- Celebratory messages when choosing privacy
- Developer education showing GDPR compliance in ~100 lines
- Created ultra-simple 30-line implementation (simple-gdpr.html)
- Added AGENTS.md with development guidelines

Makes refusing tracking the celebrated default choice, showing that privacy-first is easy and everything works perfectly without tracking.

AGENTS.md

@@ -0,0 +1,32 @@
+# Development Guidelines
+
+## Build/Test Commands
+```bash
+python3 -m http.server 8000  # Test: http://localhost:8000
+# No build system - pure HTML/JS project
+```
+
+## Code Style
+- **JS**: ES6+ vanilla, 2-space indent, semicolons, camelCase methods, PascalCase classes
+- **Quotes**: Single for JS strings, double for HTML attributes  
+- **DOM**: Cache element refs, check existence before manipulation
+- **Globals**: Minimize - use class instances for state (e.g., `window.trackingConsent`)
+- **Errors**: Use console.log for debug, alert/confirm for user interaction
+
+## Project Structure
+- `index.html` - Complete demo with all JS/CSS inline
+- `integration-example.js` - Framework integration examples
+- `translations` object - i18n with 'en'/'no' ISO codes, localStorage persistence
+
+## Key APIs
+```javascript
+localStorage.getItem('gdpr-tracking-consent') // 'true' or 'false'
+localStorage.getItem('gdpr-language') // 'en' or 'no'
+window.trackingConsent.enableTracking() // Programmatic control
+document.addEventListener('trackingModeChanged', handler) // Events
+```
+
+## Integration Notes
+- Google Analytics: Update consent via `gtag('consent', 'update', {...})`
+- Cookies: Auto-cleanup of `_ga`, `_gid`, `_gat`, `_fbp`, `_fbc` when disabled
+- GDPR compliant by default - minimal tracking until explicit consent