Implement Registration backend service API

[hrishikesh-mahajan]

As a backend developer
I need to implement the Registration backend service API
So that users can create new accounts and provide necessary information

Details and Assumptions

• Registration should include validation of required fields like email, password, etc.
• Email verification or CAPTCHA might be required for security purposes

Acceptance Criteria

    Given the Registration backend service is implemented
    When a user submits their registration details
    Then the system should validate the data and create a new user account