* feat(migrate): add Hermes memory-only import and a shared memory-import core
* feat(onboarding): offer detected memory imports during CLI setup and guided onboarding
* feat(ui): show a first-run memory-import offer in Control UI onboarding mode
* feat(linux-app): open the first-run dashboard in onboarding mode
* feat(macos): add the onboarding memory-import page
* docs: document the onboarding memory-import page across surfaces
* chore(i18n): translate onboarding memory-import strings for control-ui and native locales
* refactor: keep memory-import internals unexported for deadcode gates
* fix(ci): resolve lint findings in onboarding memory import
* chore(i18n): refresh native inventory after lint refactor
* fix(ci): skip updater artifacts in the unsigned Linux companion PR lane
* chore(i18n): reconcile locale artifacts after rebase
