Update app.py

app.py

@@ -814,4 +814,7 @@ with gr.Blocks(title="Farmer Ledger Tracker", theme=gr.themes.Soft()) as app:
 
 
 if __name__ == "__main__":
-    app.launch()
+    username = os.environ.get("APP_USERNAME")
+    password = os.environ.get("APP_PASSWORD")
+
+    app.launch(auth=(username, password))