Authentication system development

[deltathecreatorr]

Pull Request Checklist

Before submitting your pull request, please ensure you have completed the following tasks:

• Code follows the project's style guidelines
• No commented-out code or debugging statements (e.g., console.log)
• If a documentation update is necessary, have you updated the README and/or the main .env.example
• Tests have been added or updated to cover changes
• No sensitive information (e.g., secrets, passwords) is included in the code

Thank you for your contribution!