snapshot: preserve role-aware notification preferences and operational alerts

backend/workflows/migrations/0051_usernotification.py

@@ -0,0 +1,31 @@
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('workflows', '0050_userprofile_totp_recovery_codes'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='UserNotification',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('title', models.CharField(max_length=255)),
+                ('body', models.TextField(blank=True, default='')),
+                ('level', models.CharField(choices=[('info', 'Info'), ('success', 'Erfolg'), ('warning', 'Warnung'), ('error', 'Fehler')], default='info', max_length=20)),
+                ('link_url', models.CharField(blank=True, default='', max_length=500)),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('read_at', models.DateTimeField(blank=True, null=True)),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='notifications', to=settings.AUTH_USER_MODEL)),
+            ],
+            options={
+                'verbose_name': 'User Notification',
+                'verbose_name_plural': 'User Notifications',
+                'ordering': ['-created_at', '-id'],
+            },
+        ),
+    ]