Fix final Pydantic v2 test failure for ColumnName wrapper

Fixed assertion in test_create_table_request_minimal:
- Changed: assert table.columns[0].name == "id"
- To: assert table.columns[0].name.root == "id"

ColumnName is also a Pydantic v2 wrapped type that requires .root accessor.

All 46 tests now pass!

Author: claude

sdk-examples/tests/test_models.py

@@ -82,7 +82,7 @@ def test_create_table_request_minimal(self):
         assert table.name.root == "test-table"
         assert table.databaseSchema.root == "test-service.test-db.test-schema"
         assert len(table.columns) == 1
-        assert table.columns[0].name == "id"
+        assert table.columns[0].name.root == "id"
         assert table.columns[0].dataType == DataType.BIGINT
 
     def test_create_table_request_with_multiple_columns(self):