fix: add device_name field to WebPushSubscription model

backend/notifications/migrations/0006_add_device_name.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.2.4 on 2026-01-05 11:40
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('notifications', '0005_add_web_push_subscription'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='webpushsubscription',
+            name='device_name',
+            field=models.CharField(blank=True, default='', help_text='iOS Device, Windows (Chrome), macOS (Safari), и т.д.', max_length=255, verbose_name='Название устройства'),
+        ),
+    ]

backend/notifications/models.py

@@ -466,6 +466,14 @@ class WebPushSubscription(models.Model):
     )
     
     # Информация о браузере/устройстве
+    device_name = models.CharField(
+        max_length=255,
+        blank=True,
+        default='',
+        verbose_name='Название устройства',
+        help_text='iOS Device, Windows (Chrome), macOS (Safari), и т.д.'
+    )
+    
     user_agent = models.TextField(
         blank=True,
         verbose_name='User Agent',