* feat(desktop): share persistent browser data across tabs
Keep browser sign-ins and site storage across tabs and app restarts, with a Settings action to clear the shared profile.
* fix(settings): prevent duplicate browser data clears
* fix(desktop): complete browser data cleanup
Clear legacy per-tab profiles after upgrades and localize the browser data settings in every supported language.
* fix(desktop): close browser profile cleanup races
Delete the renderer capture prep handshake and keep screenshots on the serialized invalidate/retry path. The capture harness now defaults to the production P1 attach-off parking check.
