- withAuth skips check when server secret is empty
- flushQueue doesn't send X-Verstak-Secret header when secret is empty/undefined
- popup force-pings server on open (not relying on cached bridgeReachable)
- flushQueue updates bridgeReachable on every result
- Triple-state status: true/false/undefined→'Проверка...'
- Tests: verify events POST works without auth header, with empty header, full ping→events flow
mirivlad