perf: tickets notifications add default data migrate file (#13268)

Co-authored-by: feng <1304903146@qq.com>

apps/notifications/migrations/0003_initial_admin_msg.py

@@ -0,0 +1,22 @@
+# Generated by Django 4.1.13 on 2024-05-21 11:04
+
+from django.db import migrations
+
+
+def init_user_msg_subscription(apps, schema_editor):
+    User = apps.get_model('users', 'User')
+    UserMsgSubscription = apps.get_model('notifications', 'UserMsgSubscription')
+
+    receive_backends = ['site_msg', 'email']
+    user = User.objects.get(username='admin')
+    UserMsgSubscription.objects.create(user=user, receive_backends=receive_backends)
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ('notifications', '0002_auto_20210909_1946'),
+    ]
+
+    operations = [
+        migrations.RunPython(init_user_msg_subscription),
+    ]