refactor(itam): Device UUID field requires no default

ref: #437 #459

app/itam/migrations/0007_alter_device_uuid.py

@@ -0,0 +1,19 @@
+# Generated by Django 5.1.4 on 2024-12-31 03:13
+
+import itam.models.device
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('itam', '0006_alter_deviceoperatingsystem_device'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='device',
+            name='uuid',
+            field=models.CharField(blank=True, help_text='System GUID/UUID.', max_length=50, null=True, unique=True, validators=[itam.models.device.Device.validate_uuid_format], verbose_name='UUID'),
+        ),
+    ]

app/itam/models/device.py

@@ -183,7 +183,6 @@ class Device(DeviceCommonFieldsName, SaveHistory):
 
     uuid = models.CharField(
         blank = True,
-        default = None,
         help_text = 'System GUID/UUID.',
         max_length = 50,
         null = True,