Improved code readability and uniformity by standardizing line breaks, indentation, and inline conditions across safety-related services, models, and tests, including content filters, validation rules, and emergency controls.
- Add rollback manager with file checkpointing and transaction context - Add HITL manager with approval queues and notification handlers - Add content filter with PII, secrets, and injection detection - Add emergency controls with stop/pause/resume capabilities - Update SafetyConfig with checkpoint_dir setting Issue #63
