feat: implement OAuth middleware for express API

[namhoang1604]

Description:

This pull request introduces the OAuth middleware package, that can be used to replace the basic authentication using apiKey. The OAuth middleware enables secure authentication and authorization for API endpoints. This middleware will streamline the authentication process, and handle access token verification.

Related ticket(s):

#94

Checklist

• The code follows the project's coding style guidelines.
• All unit tests pass successfully.
• Any new dependencies are properly documented.
• The documentation is updated to reflect the changes (if applicable).
• The code has been reviewed by at least one other team member.

[arpentnoir]

lgtm
I would just remove the change to default config. maybe add new default example config file that shows how to configure the oauth plugin