Browser and device login
Generated CLIs can now log users in interactively. Declaring an authorization-code scheme gives <bin> auth login a browser flow with PKCE, and a device-code scheme prints a user code for machines without a browser, such as SSH sessions and containers. Tokens are stored in the OS keyring, refreshed when they expire, and sent on every request. auth logout clears them and auth status shows which schemes have a credential.
Omitting redirect-uri binds an OS-assigned loopback port at login. Pin the callback host, path, and port instead by setting one explicitly, with backup ports tried in order when the primary is busy. Authorization servers that need extra literal parameters, such as an Auth0 audience, accept them through per-request parameter maps.