| """ | |
| Service Layer Package (Business Logic). | |
| This package contains service classes that encapsulate the core business logic | |
| of the application. Services coordinate operations between the API layer and | |
| the repository layer, process data, and implement the application's features. | |
| Modules: | |
| - chat_service.py: Implements the business logic for handling chat completions, | |
| managing chat history, and interacting with the AI model (or its placeholder). | |
| """ | |