* fix(ssh): declare a wedged relay link lost instead of suppressing the dead-link check
* fix(ssh): make the Windows deps probe exit 0 on a real load failure, like its POSIX twin
* fix(relay): reap a client that has stopped answering instead of holding its leases forever
* test(relay): feed the primary before asserting the reaper exemption holds
* fix(ssh): keep a lost link's verdict unverifiable instead of reporting absence
* refactor(ssh): read the exec timeout from its typed code, not the message text
* fix(relay): bound a client that clears the handshake and then never frames anything
* fix(i18n): restore the activity-options key the rebase dropped
* fix(i18n): union en.json with main so the rebase cannot drop keys