2caddd792e
- Add StepStatus enum (PENDING, RUNNING, COMPLETED, FAILED, SKIPPED) - Add StepInput with content_id and platform validation - Add StepOutput with success and error_message fields - Add StepResult for step execution results - Add StepRecord for step execution records - Add WorkflowState with step management methods - Add StepDefinition for step configuration - Add pytest.ini for PYTHONPATH configuration - TDD GREEN phase: all 28 tests pass Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>