feat: ias module with token parsing

[LucasAlvesSoares]

Description

Kicked-off IAS module with token claim parsing

Type of Change

Please check the relevant option:

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update
• Code refactoring
• Dependency update

How to Test

Describe how reviewers can test your changes:

1. Send a request to an application with an IAS token
2. Run the following code snippet

claims = parse_token(request.headers["Authorization"])
    print(claims.app_tid)           # tenant ID (multitenant scenarios)
    print(claims.scim_id)           # SCIM-based user ID
    print(claims.sub)               # OIDC subject identifier
    print(claims.email)             # user email (when email scope requested)

4. Expect values to be populated and show up in the console

Checklist

Before submitting your PR, please review and check the following:

• I have read the Contributing Guidelines
• I have verified that my changes solve the issue
• I have added/updated automated tests to cover my changes
• All tests pass locally
• I have verified that my code follows the Code Guidelines
• I have updated documentation (if applicable)
• I have added type hints for all public APIs
• My code does not contain sensitive information (credentials, tokens, etc.)
• I have followed Conventional Commits for commit messages