notification: add notification history

core/apps/notifications/models/__init__.py

@@ -1 +1,2 @@
-from .notification import *
+from .notification import *
+from .notification_history import *

core/apps/notifications/models/notification_history.py

@@ -0,0 +1,17 @@
+from django.db import models
+
+from core.apps.shared.models import BaseModel
+from core.apps.accounts.models import User
+
+
+class NotificationHistory(BaseModel):
+    title = models.CharField(max_length=200)
+    body = models.TextField()
+    user = models.ForeignKey(
+        User, on_delete=models.CASCADE, related_name='notification_histories'
+    )
+    is_read = models.BooleanField(default=False)
+    data = models.JSONField(null=True, blank=True)
+
+    def __str__(self):
+        return f'Notification to {self.user}: {self.title}'