docs: Create comprehensive project improvements roadmap

- Add IMPROVEMENTS.md with detailed project enhancement strategy
- Document current project strengths across structure, i18n, theming, and performance
- Outline planned improvements in testing, error handling, performance monitoring, and more
- Define priority order for implementing project enhancements
- Include implementation guidelines and contribution recommendations

IMPROVEMENTS.md

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+# Project Improvements
+
+## Current Strengths 💪
+
+### Project Structure
+- Clean, modular organization with separate directories for components, pages, i18n, etc.
+- Follows Vue 3 best practices with Composition API
+- Good separation of concerns between layout components and pages
+
+### Internationalization
+- Type-safe i18n system
+- Lazy loading of language files
+- Persistent language preferences
+- Clean language switcher UI with Shadcn components
+
+### Theming
+- Dark/light theme implementation with smooth transitions
+- Consistent theme colors using Tailwind's color system
+- Theme persistence
+- Proper theme-aware components
+
+### Components
+- Shadcn components properly integrated
+- Reusable UI components in dedicated directories
+- TypeScript interfaces for props
+- Responsive design patterns
+
+### Performance
+- PWA support with periodic updates
+- Code splitting configuration
+- Image optimization
+- Lazy loading implementation
+
+## Planned Improvements 🎯
+
+### 1. Testing Implementation
+- [ ] Set up Vitest for unit testing
+- [ ] Set up Cypress for E2E testing
+- [ ] Add @testing-library/vue for component testing
+- [ ] Write tests for critical components
+- [ ] Set up CI/CD pipeline for automated testing
+
+### 2. Error Handling
+- [ ] Implement global error boundary
+```typescript
+app.config.errorHandler = (err, instance, info) => {
+  // Log error to service
+  console.error(err)
+}
+```
+- [ ] Add error states for async operations
+- [ ] Implement error logging service
+- [ ] Add retry mechanisms for failed API calls
+
+### 3. Performance Monitoring
+- [ ] Implement Web Vitals monitoring
+```typescript
+import { onCLS, onFID, onLCP } from 'web-vitals'
+
+function sendToAnalytics({ name, delta, id }) {
+  // Send metrics to analytics
+}
+
+onCLS(sendToAnalytics)
+onFID(sendToAnalytics)
+onLCP(sendToAnalytics)
+```
+- [ ] Set up performance budgets
+- [ ] Implement automated performance testing
+- [ ] Add bundle size monitoring
+
+### 4. Documentation
+- [ ] Set up Storybook for component documentation
+- [ ] Implement TypeDoc for API documentation
+- [ ] Create comprehensive README
+- [ ] Add contribution guidelines
+- [ ] Document component usage examples
+- [ ] Add inline code documentation
+
+### 5. SEO Optimization
+- [ ] Implement meta tags management
+- [ ] Add OpenGraph tags
+- [ ] Generate sitemap
+- [ ] Implement structured data
+- [ ] Add robots.txt configuration
+
+### 6. Accessibility
+- [ ] Add missing ARIA labels
+- [ ] Implement keyboard navigation
+- [ ] Add skip links
+- [ ] Ensure proper color contrast
+- [ ] Add screen reader announcements
+- [ ] Test with screen readers
+
+### 7. Type Safety Enhancements
+- [ ] Add comprehensive TypeScript interfaces for store state
+- [ ] Implement strict prop types for all components
+- [ ] Add runtime type checking for API responses
+- [ ] Enhance type safety in route definitions
+
+### 8. Security
+- [ ] Implement CSP (Content Security Policy)
+- [ ] Add XSS protection
+- [ ] Set up security headers
+- [ ] Implement rate limiting
+- [ ] Add input sanitization
+
+### 9. Build & Development
+- [ ] Optimize build configuration
+- [ ] Add development tools and utilities
+- [ ] Implement git hooks for code quality
+- [ ] Set up automated dependency updates
+- [ ] Add development environment documentation
+
+## Priority Order 📋
+
+1. **High Priority**
+   - Testing Implementation
+   - Error Handling
+   - Security Improvements
+
+2. **Medium Priority**
+   - Documentation
+   - Type Safety Enhancements
+   - Accessibility Improvements
+
+3. **Lower Priority**
+   - Performance Monitoring
+   - SEO Optimization
+   - Build & Development Optimizations
+
+## Getting Started 🚀
+
+To begin implementing these improvements:
+
+1. Start with testing setup:
+```bash
+# Install testing dependencies
+npm install -D vitest @testing-library/vue cypress
+```
+
+2. Add error handling:
+```bash
+# Install error tracking
+npm install @sentry/vue
+```
+
+3. Set up documentation:
+```bash
+# Install Storybook
+npx storybook@latest init
+```
+
+## Contributing 🤝
+
+When implementing these improvements:
+
+1. Create a feature branch
+2. Follow the existing code style
+3. Add tests for new features
+4. Update documentation
+5. Submit a PR with a clear description
+
+## Notes 📝
+
+- Keep track of completed items by checking them off
+- Add new improvements as they are identified
+- Update priorities based on project needs
+- Document any technical decisions made during implementation