Update main.py

main.py

@@ -309,5 +309,13 @@ async def process_pdfs(
         raise HTTPException(status_code=500, detail=str(e))
 
 
+@app.get("/")
+async def root():
+    return {
+        "message": "Welcome to the Student Result Card API.",
+        "usage": "POST PDFs to /process with 'student_pdf' and 'answer_key_pdf' fields. Use ?download=true for file download."
+    }
+
+
 if __name__ == "__main__":
     uvicorn.run("main:app", host="0.0.0.0", port=8000, reload=True)