feat(auth): add IAS ECP SSO

src/apps/user/migrations/0009_ssoidentity.py

@@ -0,0 +1,64 @@
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("user", "0008_auto_20260328_1630"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="SsoIdentity",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("issuer", models.CharField(max_length=64, verbose_name="issuer")),
+                (
+                    "subject",
+                    models.CharField(max_length=255, verbose_name="external user id"),
+                ),
+                (
+                    "last_authenticated_at",
+                    models.DateTimeField(verbose_name="last authenticated at"),
+                ),
+                (
+                    "created_at",
+                    models.DateTimeField(auto_now_add=True, verbose_name="created at"),
+                ),
+                (
+                    "updated_at",
+                    models.DateTimeField(auto_now=True, verbose_name="updated at"),
+                ),
+                (
+                    "user",
+                    models.OneToOneField(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="sso_identity",
+                        to=settings.AUTH_USER_MODEL,
+                        verbose_name="user",
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name": "SSO identity",
+                "verbose_name_plural": "SSO identities",
+                "db_table": "user_sso_identities",
+            },
+        ),
+        migrations.AddConstraint(
+            model_name="ssoidentity",
+            constraint=models.UniqueConstraint(
+                fields=("issuer", "subject"),
+                name="user_sso_identity_issuer_subject_unique",
+            ),
+        ),
+    ]