- Add API client utility (frontend/src/lib/api.ts) with JWT authentication
- Add Sidebar component with navigation menu (Korean labels)
- Add Header component with logout functionality
- Update globals.css with Tailwind CSS configuration
- Update layout.tsx with Inter font and Korean language
- Update page.tsx with dashboard layout and auth check
- Add login page with form validation and error handling
- Fix .gitignore to not exclude frontend/src/lib/
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
zephyrdark
19d5527a71