fix

core/apps/contracts/migrations/0004_alter_contract_folder.py

@@ -0,0 +1,19 @@
+# Generated by Django 5.2 on 2025-11-11 19:20
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('contracts', '0003_alter_folder_options_folder_user'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='contract',
+            name='folder',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='contracts', to='contracts.folder'),
+        ),
+    ]