add finance app

core/apps/finance/models/__init__.py

@@ -0,0 +1 @@
+from .cash_transaction import *

core/apps/finance/models/cash_transaction.py

@@ -0,0 +1,16 @@
+from django.db import models
+from django.utils.translation import gettext_lazy as _
+
+from core.apps.shared.models import BaseModel
+
+
+class CashTransaction(BaseModel):
+    name = models.CharField(max_length=200, unique=True)
+
+    def __str__(self):
+        return self.name
+    
+    class Meta:
+        verbose_name = _('Kassa')
+        verbose_name_plural = _('Kassalar')
+