Enhance User model: add email field with unique constraint, update id_card field to allow null values, and include verified field. Update UserAdmin to display verified field. Improve device listing to filter by logged-in user.

api/migrations/0014_alter_user_email.py

@@ -0,0 +1,17 @@
+# Generated by Django 5.1.2 on 2025-03-28 16:03
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("api", "0013_alter_user_managers_alter_user_id_card"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="user",
+            name="email",
+            field=models.EmailField(blank=True, max_length=254, null=True, unique=True),
+        ),
+    ]