Return to login after changing a password now survives the sign-out repository remount and opens password login with the previous email prefilled in memory. The password remains empty and masked. Navigation explicitly resets old private stacks and modals when account ownership changes, preserving isolation.

App PR: https://github.com/snag-tcg/poc-tcg-collector/pull/966. Companion password field/visibility PR: https://github.com/snag-tcg/poc-tcg-collector/pull/962. Focused navigation/account/isolation/wiring tests: 75 passed. Full checks are recorded on the app PR. A disposable-account Maestro flow is prepared but not run. No emulator, account/password mutation, production deployment or collection change.