Create Emails API

[tuongtran23]

User Story: As a developer, I want to be able to retrieve a list of all emails registered in the system

Acceptance Criteria:

Scenario 1: Retrieving a list of all emails

Given no query parameters

When I make a GET request to the API endpoint to retrieve a list of emails

Then the system should respond with a 200 status code and a list of all emails in the system.

Scenario 2: Retrieving emails details

Given an emailId as a path variable

When I make a GET request to the API endpoint to retrieve the email details

Then the system should respond with a 200 status code and email details data in the response body