A second exit request now cuts short the wait for an OAuth token refresh

What

During shutdown, Claude Code already waited for an OAuth token refresh to finish before exiting. OAuth is the sign-in system that keeps Claude Code logged in, and a refresh renews the login token. That wait used to be a fixed length. It can now be shortened.

• On a normal exit (exit code 0), waitForHeldOAuthRefresh now takes its wait length from a calculation instead of a fixed value, and widens the shutdown safety timer by the same amount.
• It installs shortenOAuthRefreshWait. When shutdown is requested again while Claude Code is already shutting down, a further internal step runs and then shortenOAuthRefreshWait is called, which cuts the wait short.
• Shutdown now also checks an extra condition alongside waitForHeldOAuthRefresh. When that condition holds, the wait for the refresh is skipped entirely.

Why

If a token refresh is slow, pressing Ctrl-C a second time or asking to exit again should no longer leave Claude Code hanging while it waits for the refresh.