fix: add_deduct_tax in Purchase Taxes setup (#25871)

diff --git a/erpnext/setup/setup_wizard/operations/taxes_setup.py b/erpnext/setup/setup_wizard/operations/taxes_setup.py
index 429a558..5019837 100644
--- a/erpnext/setup/setup_wizard/operations/taxes_setup.py
+++ b/erpnext/setup/setup_wizard/operations/taxes_setup.py
@@ -106,6 +106,9 @@
 			'charge_type': 'On Net Total'
 		}
 
+		if doctype == 'Purchase Taxes and Charges Template':
+			tax_row_defaults['add_deduct_tax'] = 'Add'
+
 		# if account_head is a dict, search or create the account and get it's name
 		if isinstance(account_data, dict):
 			tax_row_defaults['description'] = '{0} @ {1}'.format(account_data.get('account_name'), account_data.get('tax_rate'))