VSN-1967 : Adding feature of retrieving establishment name by uai code.

Overview :

Documentation Update

This validation introduces an update to the changelog, ensuring that the documentation reflects the latest modifications and provides clarity for contributors and users.

Feature Exposition

This validation exposes the newly added feature, making it accessible within the service. It ensures that the functionality is properly integrated and available for use.

Feature Implementation

This validation delivers the core implementation of the requested feature. It includes the necessary logic and integration to support retrieving the establishment name by UAI code.

Signature Addition

This validation adds a signature mechanism to the service. It ensures that requests or responses are properly signed, enhancing traceability and reliability.

Endpoint Addition

This validation introduces an adequate endpoint to handle the new functionality. It provides a clear and structured way to access the feature through the API.

Closes VSN-1967