Implement Profile Creation API

[delucca]

Type of Issue

Feature Request

Description

Develop an API endpoint to allow the creation of new profiles. This should handle input validation and ensure that all necessary data (e.g., email, name, preferences) is provided before saving to the database.

Additional Context

The creation process should validate that all required fields are included, check for duplicates, and securely store the information. This API will support both guest and staff profiles.

Acceptance Criteria

1. Profile creation endpoint is implemented.
2. Input validation for required fields (name, email, etc.) is handled.
3. New profiles are saved securely in the database.
4. Duplicate profile prevention logic is in place.