1. entities.pyfrom uuid import UUIDfrom advanced_alchemy.base import UUIDAuditBasefrom sqlalchemy.orm import Mapped, mapped_columnfrom sqlalchemy.dialects.postgresql import UUID as psql_UUID # postgresql 에서도 string type 이 아닌 UUID type으로 관리하기 위해 importclass IdempotencyKey(UUIDAuditBase): idempotency_key: Mapped[UUID] = mapped_column(psql_UUID(as_uuid=True), unique=True, nullable=False) 2. auto..