add Employee custom fields: father_name, identification_number, ssn

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

jey_erp/custom_fields.py

@@ -941,6 +941,26 @@ def create_custom_fields():
                 insert_after='payment_account'
             )
         ],
+        "Employee": [
+            dict(
+                fieldname='father_name',
+                label='Ata adı',
+                fieldtype='Data',
+                insert_after='last_name'
+            ),
+            dict(
+                fieldname='identification_number',
+                label='FİN',
+                fieldtype='Data',
+                insert_after='passport_number'
+            ),
+            dict(
+                fieldname='ssn',
+                label='SSN',
+                fieldtype='Data',
+                insert_after='identification_number'
+            )
+        ],
         "Employee Transfer": [
             dict(
                 fieldname='reason',