T3 sign-in using ConduitMCP's OAuth discovery, registration, PKCE and callback handling.
Defaults to read-only scope. Tokens stay in Conduit's in-memory store unless the
caller supplies a custom :store in :oauth_options. The caller owns single-use
consumption of flows created through begin/2; login/2 uses a one-shot listener.
Summary
Functions
Begin a sign-in for an application serving its own :redirect_uri.
Validate a complete callback URL and exchange its code for secret-wrapped tokens.
Run a sign-in with a temporary loopback callback. Requires an :open URL callback.