fix cuser_role model and add unique together

apps/reminder/migrations/0023_alter_reminder_type.py

@@ -0,0 +1,18 @@
+# Generated by Django 4.2.1 on 2024-01-23 07:21
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('reminder', '0022_alter_reminder_type'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='reminder',
+            name='type',
+            field=models.CharField(choices=[('CU', 'CUSTOMER'), ('LE', 'LEAD'), ('UN', 'UNKNOWN'), ('NO', 'NOTE')], default='UN', max_length=2),
+        ),
+    ]