feat: create refresh token

[theChosenDevop]

Pull Request

Description

This PR implements the following authentication-related features:

• Refresh Token Handling: Generates and stores HTTP-only refresh tokens for improved security.
• Logout Functionality: Ensures secure logout by clearing the refresh token from cookies.
• Login Enhancements: Adds improved token generation and user validation.

Related Issue

Fixes # 1260

Type of Change

• feat: New feature
• fix: Bug fix
• docs: Documentation updates
• style: Code style/formatting changes
• refactor: Code refactoring
• perf: Performance improvements
• test: Test additions/updates

Test Evidence

All tests passed successfully, including:

• Login with valid credentials
• Login with invalid credentials
• Refresh token issuance and validation
• Logout functionality ensuring refresh token is removed

Screenshots (if applicable)

N/A

Documentation Screenshots (if applicable)

• Updated API documentation for POST /auth/login, POST /auth/refresh-token, and POST /auth/logout.

Checklist

• My code follows the project's coding style
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works