feat: implement comparison history, loading bar, recently viewed & mu…

[Cedarich]

Property Experience Enhancements

🎯 Overview

This PR implements four key user experience enhancements to improve property browsing, navigation feedback, and international support.

✨ Features Implemented

1. Property Comparison History

• Track and display previously compared properties
• Persistent storage using Zustand with localStorage
• Easy access to re-view past comparisons
• Clear history functionality

2. Loading Progress Bar (#162)

• Visual feedback during route transitions
• Respects prefers-reduced-motion accessibility setting
• Smooth animations with brand blue color (#2563eb)
• Fixed TypeScript error (ts(7030)) for proper cleanup returns

3. Recently Viewed Properties

• Automatic tracking of viewed properties
• Persistent storage with configurable limits
• Quick access to previously viewed listings
• Clean UI integration

4. Multi-Currency Balance

• Support for multiple currency displays
• Real-time balance updates
• International user support
• Clean currency formatting

🔧 Technical Details

• All features use Zustand stores with localStorage persistence
• Proper TypeScript typing throughout
• Responsive design for mobile and desktop
• Accessibility considerations implemented
• Error boundaries and loading states included

🧪 Testing

• Manual testing completed for all features
• TypeScript compilation passes
• No new linting errors introduced
• Component isolation verified

📸 Screenshots

Add screenshots here if UI changes are visible

✅ Checklist

• Code follows project conventions
• Self-review completed
• Comments added for complex logic
• No new warnings introduced
• Features tested locally
• Accessibility considerations addressed

🔗 Related Issues

• Closes Improvement: Add loading progress bar for page transitions #162 (Loading Progress Bar)
• Related to property browsing enhancements

📝 Notes

All four features are backward compatible and don't introduce breaking changes. Each feature can be used independently.

closes #162
closes #163
closes #164
closes #165

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