Remove the opaque square behind shared CardTile favourites, including Pokemon and Character details. Preserve a 44-point target and accessible selected state, with a theme-aware star silhouette for legibility.

Mobile PR #704 targets staging and is not merged. Observed focused RED/GREEN, lint/typecheck passed and 2493 Jest tests passed with 11 pre-existing skips. Maestro assertions are prepared but not executed because the executable is unavailable. Native image/layout validation remains pending; no build or deployment is claimed. Notion was updated with the PR, date, evidence and limitations, preserving historical remarks.