Add new endpoint for home rout

main.py

@@ -39,4 +39,8 @@ async def health_check():
     """
     Health check endpoint
     """
-    return {"status": "healthy", "service": "healthcare-ai-assistant"}
+    return {"status": "healthy", "service": "healthcare-ai-assistant"}
+
+@app.get("/")
+async def root():
+    return {"message": "Hello World"}