feat: add Tax Free amount columns to employee payroll register

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

taxes_az/taxes_az/report/employee_payroll_register/employee_payroll_register.py

@@ -25,6 +25,13 @@ DEDUCTION_TYPES = [
 	"Gəlir vergisi",
 ]
 
+TAX_FREE_FIELDS = [
+	("custom_vergi_amount", "Vergi tutulmayan gəlir"),
+	("custom_mdss_amount", "MDSS cəlb olunmayan gəlir"),
+	("custom_unemployment_insurance_amount", "İşsizlik sığortasına cəlb olunmayan gəlir"),
+	("custom_medical_insurance_amount", "İcbari tibbi sığortaya cəlb olunmayan gəlir"),
+]
+
 
 def execute(filters=None):
 	if not filters:
@@ -83,6 +90,12 @@ def execute(filters=None):
 			row["total_deduction"] = flt(ss.total_deduction)
 			row["net_pay"] = flt(ss.net_pay)
 
+		for fieldname, _label in TAX_FREE_FIELDS:
+			amount = flt(ss.get(fieldname))
+			if currency == company_currency:
+				amount *= flt(ss.exchange_rate)
+			row[fieldname] = amount
+
 		data.append(row)
 
 	return columns, data
@@ -234,6 +247,17 @@ def get_columns():
 		]
 	)
 
+	for fieldname, label in TAX_FREE_FIELDS:
+		columns.append(
+			{
+				"label": _(label),
+				"fieldname": fieldname,
+				"fieldtype": "Currency",
+				"options": "currency",
+				"width": 160,
+			}
+		)
+
 	return columns