Creates a Kanban task file outlining the architectural plan and
implementation steps for adding a zero-dependency real-time event
bus to `@auth-yes/sdk`. This bus will listen for Valkey RESP3 push
invalidation events and emit raw token strings to registered
listeners, ensuring safe and isolated execution to prevent downstream
crashes.
Co-authored-by: mrteye <1945243+mrteye@users.noreply.github.com>