feat: initialize frontend with React and Vite setup

- Add main application structure with App component
- Implement state management for counter functionality
- Create CSS styles for application layout and components
- Include assets for logos and hero image
- Set up Vite configuration for development environment
- Establish global CSS variables for theming

backend/app/main.py

@@ -0,0 +1,9 @@
+from fastapi import FastAPI
+from app.services.orcid_client import ORCIDClient
+
+app = FastAPI()
+
+@app.get("/orcid/{orcid_id}/works")
+def test_works(orcid_id: str):
+    client = ORCIDClient()
+    return client.fetch_works(orcid_id)