v0.6.9a2

Fixed

• Windows browser-restart log noise (WinError 995)
  Suppressed benign Windows Proactor teardown errors logged when the event loop and proxy relay are torn down during a browser restart.
  The loop exception handler now ignores WinError 995 (ERROR_OPERATION_ABORTED) and WinError 64 (ERROR_NETNAME_DELETED)
  alongside the existing 10054 (WSAECONNRESET); genuine errors are still surfaced. The restart itself was always succeeding — only
  the spurious ERROR tracebacks are gone.