v0.1.2

• Administrator work is not available over any API. The hosted API and
  a desk's local and LAN APIs refuse it with reason admin_not_via_api
  (kind refused): an exec asking to run as administrator is answered exit
  254 with that error, and minting a token with the admin scope is a 403.
  This SDK never had an admin exec option; create_token(scopes=[..., "admin"]) on the api, local and lan transports is now a
  UsageError (reason admin_not_via_api) raised before anything is sent
  — breaking for code that minted admin tokens through the API, which now
  refuses them anyway. Administrator work runs only through gaiadesk-cli exec --admin; the CLI transport still mints admin-scoped tokens. New
  constant ADMIN_NOT_VIA_API; both refusals surface as RefusedError
  with that reason.
• Windows: response_timeout now ends the wait at its limit (a socket
  shutdown does not wake a blocked receive there; the SDK also closes the
  socket's handle, where it used to wait for a 5-second backstop), and
  kill() stops a stream still waiting for its answer. The local
  transport's named pipe also cancels a blocked synchronous read
  (CancelSynchronousIo), so idle_timeout holds there.
• Tests: Windows fixes (no Unix socket server, \n line ends from the fake
  CLI, refused-connect timing), a flaky local-socket test, and a real
  named-pipe timeout test.