Expand README to include detailed developer onboarding information covering:
- Quick start instructions
- Repository layout and core concepts
- Data model and state management
- App flow and component architecture
- Template system and theming
- Printable HTML and export process
- Contribution guidelines and troubleshooting
- Add 4 new CV templates (ATS-Friendly, Classic, Modern, Minimal) with thumbnails
- Implement template registry and gallery component for template selection
- Add photoUrl field to personal info with URL validation
- Update buildPrintableHtml to support template-specific styling
- Modify ExportControls to use template registry
- Add template preview thumbnails in SVG format
- Set up React + TypeScript + Vite project with TailwindCSS
- Implement Zustand store for CV data management
- Create personal details editor with validation
- Add ATS-friendly template for CV preview
- Build stepper navigation component
- Include schema validation with Zod
- Configure ESLint and Prettier for code quality
