feat(auth): migrate to Keycloak metadata auth

tests/conftest.py

@@ -159,25 +159,6 @@ class FakeAsyncSession:
         self.refreshed.append(obj)
 
 
-def make_user(**overrides):
-    from app.domain.models.role import UserRole
-    from app.domain.schemas.user import UserInDB
-
-    data = {
-        "id": 1,
-        "username": "tester",
-        "email": "tester@example.com",
-        "hashed_password": "hashed-password",
-        "role": UserRole.USER,
-        "is_active": True,
-        "is_superuser": False,
-        "created_at": datetime(2025, 1, 1, tzinfo=timezone.utc),
-        "updated_at": datetime(2025, 1, 1, tzinfo=timezone.utc),
-    }
-    data.update(overrides)
-    return UserInDB(**data)
-
-
 def make_audit_log(**overrides):
     data = {
         "id": uuid4(),