happybell80 f5ec562748 Implement atomic deployment with backup and rollback
- Use atomic swap strategy: tmp → backup → deploy
- Automatic backup with timestamp for rollback
- Clean up old backups (keep 5 latest)
- Safer file deployment preventing partial updates
- Based on 2024 GitOps best practices

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-07-08 00:01:38 +09:00
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