The set detail screen keeps its loaded name in the fixed back bar in Explorer and Collection. Filters, logos and metadata remain in the scrolling header. This addresses the Notion "Nom serie fixe" report without changing assets or navigation behavior.

Mobile PR: https://github.com/snag-tcg/poc-tcg-collector/pull/628

Lint and typecheck passed. Jest passed 235 suites and 2307 tests, with 11 pre-existing skips. The wiring regression failed before the fix and passed after. Maestro scroll/return assertions were added but could not run because Maestro is not installed. Native Android/iOS visual validation remains pending. The PR is open against staging; no merge or deployment was performed.