mindwire v0.1.57

Native subscription sign-in now uses one callback flow across computer runtimes.

• On iPhone and iPad, sign-in opens automatically inside Mindwire and the browser closes when native authentication completes.
• Cloud/Oblien, custom SSH, paired computers and Docker workspaces deliver the callback through their existing authenticated daemon connection. No separate SSH connection or public callback port is required.
• Callback delivery is bound to the active login's flow ID, exact native loopback endpoint and OAuth state. Native credentials remain owned by the harness.
• Canceling sign-in stays responsive while the native callback is running.
• The Go and TypeScript SDKs expose Auth.Callback / auth.callback, with the native endpoint declared by AuthState.callbackUrl.

Use daemon v0.1.57 or later together with an Apple app build containing these changes. Publishing this release does not install an Apple app update or replace already-running daemons.