Expands the existing single test into four cases:
- 4 placeholder cards in Playlists row when no system playlists exist
- Empty-state copy for each section verbatim against the strings
in HomeScreen
- Real For-You card renders with the system badge when present
- Existing rollups (Recently added / Rediscover) still render correctly
alongside the new providers
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
bvandeusen
17ff69780d