Public SDK method to open Subscribe/Login prompt from custom widget actions

Description: As a developer embedding your widget, I want a public SDK API to programmatically open the native Subscribe/Login prompt from a custom button or action so that I can offer a dedicated “Subscribe” call-to-action within my widget, matching the demo experience without relying on implicit auth-gated actions or view changes. Problem: There is currently no public SDK method to trigger the login/subscribe prompt directly. While auth-required actions automatically prompt for authentication, that doesn’t solve the use case of adding a custom “Subscribe” button inside a widget. The suggested workaround is to navigate to the Changelog view (which includes a native Subscribe button), but this forces an unnecessary view change and disrupts the intended custom UI/UX. Benefit: A public SDK trigger enables a consistent, streamlined user experience and higher conversion by placing the subscribe/login prompt contextually where it’s most relevant. It avoids brittle workarounds, reduces implementation complexity, and preserves the same trusted, native authentication and subscription flow users see when it’s triggered implicitly.