Automatically adds the active Global Edition path prefix to Rails generated URLs.

Controllers, views, and helpers already get this behavior through request.script_name, which is set by Middleware::GlobalEdition. However, route helpers can also be called from places without direct access to the request object, such as models or background logic:

This change makes generated paths respect the active Global Edition region for the current request through Cdo::GlobalEdition.current_region, while preserving any explicitly provided script_name. For example:

Rails.application.routes.url_helpers.home_path
# => '/home'

Cdo::GlobalEdition.current_region = 'in'
Rails.application.routes.url_helpers.home_path
# => '/in/en/home'

Cdo::GlobalEdition.current_region = 'in'
I18n.locale = 'hi-IN'
Rails.application.routes.url_helpers.home_path                     # => '/in/hi/home'
Rails.application.routes.url_helpers.home_path(script_name: '/la') # => '/la/home'
Rails.application.routes.url_helpers.home_path(script_name: nil)   # => '/home'