Improve the account empty state and modal ergonomics, add complete keyboard focus handling and accessible labels, localize the core upload UI, and align the product version with the v2.0.2 release.
Update the real Electron smoke contract for the four-tab, five-hoster account-manager UI and make Electron failures propagate through the outer Node process. This prevents stale selector failures and child-process timeouts from being reported as successful release gates.
