feat: deprecate email, pre-verify users + documentation

backend/apps/accounts/tests/test_phone_auth.py

@@ -76,3 +76,25 @@ def test_phone_auth_refresh_endpoint_still_works(client):
     )
     assert refresh_response.status_code == 200
     assert "access" in refresh_response.json()
+
+
+@pytest.mark.django_db
+@override_settings(OTP_PROVIDER="console")
+def test_phone_auth_verify_returns_404_when_user_removed(client):
+    with patch("apps.accounts.services.otp.generate_code", return_value="123456"):
+        request_response = client.post(
+            reverse("phone_auth_request"),
+            {"phone_number": "0512345678", "channel": "sms"},
+            content_type="application/json",
+        )
+        request_id = request_response.json()["request_id"]
+
+    User.objects.filter(phone_number="+966512345678").delete()
+
+    verify_response = client.post(
+        reverse("phone_auth_verify"),
+        {"request_id": request_id, "code": "123456"},
+        content_type="application/json",
+    )
+
+    assert verify_response.status_code == 404

backend/apps/accounts/tests/test_user_display_name.py

@@ -0,0 +1,35 @@
+import pytest
+
+from apps.accounts.models import User
+
+
+@pytest.mark.django_db
+def test_display_name_prefers_full_name():
+    user = User.objects.create_user(
+        phone_number="+966500000001",
+        first_name="Sara",
+        last_name="Ali",
+        email="sara@example.com",
+    )
+
+    assert user.display_name == "Sara Ali"
+    assert str(user) == "Sara Ali"
+
+
+@pytest.mark.django_db
+def test_display_name_falls_back_to_email():
+    user = User.objects.create_user(
+        phone_number="+966500000002",
+        email="fallback@example.com",
+    )
+
+    assert user.display_name == "fallback@example.com"
+
+
+@pytest.mark.django_db
+def test_display_name_falls_back_to_phone_when_no_email():
+    user = User.objects.create_user(
+        phone_number="+966500000003",
+    )
+
+    assert user.display_name == "+966500000003"