Claude session cookies are on anthropic.com, not claude.ai. The login
window was not detecting auth (Cancel stayed, no Done) and API calls
were sent without the actual session token.
- claudeCookieHeader: include anthropic.com cookies so the token is
sent to the usage/bootstrap endpoints
- checkInitialSignInState: detect anthropic.com cookies on startup
- didFinish in LoginView: fire auth when anthropic.com cookies found
- signOut: clear anthropic.com data alongside claude.ai
- notAuthenticated catch: set isSignedIn = false so Settings stays
in sync with the main panel