Automate Vimeo showcase (album) creation and privacy configuration via the Vimeo API

Steps

1. Create a showcase via the Vimeo API, noting that Vimeo's API refers to showcases as albums in some endpoint paths and response fields
2. Set the showcase's own privacy.view value to one of anybody (public, viewable on Vimeo or via embed), embed_only (not listed on Vimeo, but embeddable anywhere), or password (requires the correct password to view)
3. Add videos to the showcase via the API and understand that each video retains its own individual privacy setting independent of the showcase's privacy setting
4. For an anybody or embed_only showcase, only videos whose own privacy is set to anybody or unlisted will actually be visible when the showcase is embedded elsewhere - more restrictive individual video privacy will hide that video from the showcase
5. For a password-protected showcase, all added videos become visible within the embedded showcase regardless of their individual privacy setting, since the showcase's own password becomes the access gate
6. Verify the resulting embedded showcase's video list matches expectations by testing with videos at each individual privacy level before relying on this behavior in production