Issue 4: Accessories Store API Endpoints

[victorgrubio]

What: Create API endpoints to list accessories, process orders, and manage inventory.

Requirements:

• [ ] [ ] Define models for the accessories and orders, including attributes for inventory management.
• [ ] [ ] Implement endpoint to list all available accessories.
• [ ] [ ] Create an endpoint to process orders and update inventory accordingly.
• [ ] [ ] Ensure all endpoints handle potential errors and provide meaningful responses.