Opening a sealed product snapshots the active mode, search and type/series selection into the existing TCG-scoped Explorer view state before navigation. This fixes a reproduced loss of Sealed mode when switching from Pokemon to One Piece without toggling mode again, then opening a product and returning. Stack back remains unchanged, and existing scroll/expanded block state is preserved.

The component regression test failed with Cards instead of Sealed before the fix and passed after it. Added coverage opens actual product tiles and remounts Explorer for both games, preserving series selection or type/search filters. The existing sealed/back suite passes with 13 tests. Lint and typecheck pass. Full Jest and pre-push gates pass: 291 suites / 2,842 tests, 11 existing skips. The new Maestro flow parses, but npm run e2e cannot run because Maestro CLI is not installed; no device verification is claimed.

No dependencies, native configuration, backend, VPS or collection data changed. Existing unrelated changes in the primary checkout remain untouched. The issue is related to the previous REV-082 sealed back-navigation workflow; no new REV identifier or Notion update is claimed without the reference record.

• Mobile issue #796
• Mobile PR #797, targeting staging.