revert: "refactor!: drop e-invoicing integration from erpnext (#26940)"
This reverts commit c335962827e4927f7ada084e9ba4ab2db15e3eb6.
diff --git a/erpnext/hooks.py b/erpnext/hooks.py
index d172da3..04f5793 100644
--- a/erpnext/hooks.py
+++ b/erpnext/hooks.py
@@ -443,6 +443,7 @@
'erpnext.controllers.taxes_and_totals.get_regional_round_off_accounts': 'erpnext.regional.india.utils.get_regional_round_off_accounts',
'erpnext.hr.utils.calculate_annual_eligible_hra_exemption': 'erpnext.regional.india.utils.calculate_annual_eligible_hra_exemption',
'erpnext.hr.utils.calculate_hra_exemption_for_period': 'erpnext.regional.india.utils.calculate_hra_exemption_for_period',
+ 'erpnext.controllers.accounts_controller.validate_einvoice_fields': 'erpnext.regional.india.e_invoice.utils.validate_einvoice_fields',
'erpnext.assets.doctype.asset.asset.get_depreciation_amount': 'erpnext.regional.india.utils.get_depreciation_amount',
'erpnext.stock.doctype.item.item.set_item_tax_from_hsn_code': 'erpnext.regional.india.utils.set_item_tax_from_hsn_code'
},