Handy Tool 2.2.2

Added

• Works behind a proxy that asks for a sign-in (Windows). Handy read the proxy's address from
  Windows but could not sign in to it, so on a PC behind such a proxy model downloads and update
  checks failed with "error sending request" while the browser worked. Handy now uses the proxy
  set in Windows the way a browser does - static proxy, bypass list or setup script (PAC) - and
  signs in with your Windows account (Negotiate / NTLM) when the proxy asks. Advanced settings >
  Proxy (new) also offers a manual proxy (address, port, sites reached directly), a user name and
  password for a proxy with its own account (stored encrypted for your Windows account), No
  proxy, and a Test button that shows the route and the sign-in used. Covers model downloads,
  update checks, LLM providers and the online transcription engines; servers on this PC are
  always reached directly.

Fixed

• Network errors say why. A failed model download is now logged with its cause (it was not
  logged at all), and update-check errors include the underlying reason (DNS, connection, TLS,
  proxy) instead of only "error sending request".