Update main.py

main.py

@@ -64,3 +64,9 @@ async def upload_file(file: UploadFile = File(...)):
     
     # Return the file as a downloadable response.
     return FileResponse(temp_md.name, filename="output.md", media_type="text/markdown")
+
+# --- API Endpoints ---
+@app.get("/", summary="Health Check")
+async def root():
+    return {"message": "API is up and running."}
+