- Services now use db.flush() instead of db.commit() for database operations - API endpoints handle transaction commit after service calls - Remove db.rollback() from services (let exception handlers manage this) - Ensures consistent transaction boundaries at API layer This pattern gives API endpoints full control over when to commit, allowing for better error handling and potential multi-operation transactions. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>