Improve Seed Service to Support Relationships and Smaller Methods #49
Description
The current seed service lacks support for seeding data with relationships between entities. This makes it difficult to generate realistic and interconnected data for development and testing purposes. Additionally, the service is not very modular, making it hard to maintain and extend. The goal is to refactor the seed service to support relationships, break down large methods into smaller, reusable ones, and improve overall maintainability.