feat: migrate User model with kdf_salt field and update is_active default status

backend/users/migrations/0002_user_kdf_salt_alter_user_is_active.py

@@ -0,0 +1,22 @@
+# Generated by Django 6.0.4 on 2026-04-10 04:48
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("users", "0001_initial"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="user",
+            name="kdf_salt",
+            field=models.CharField(blank=True, max_length=128, null=True),
+        ),
+        migrations.AlterField(
+            model_name="user",
+            name="is_active",
+            field=models.BooleanField(default=False),
+        ),
+    ]