// Koru Standard Library: the possession-shaped callable surface on the
// bridge. Joined via `~part affordances` in bridge.kz; merged into the
// bridge module at load.
//
// AFFORDANCES - the callable surface, possession-shaped (the HATEOAS rooms)
//
// `vocabulary` is the static surface: everything the scope declares. This is
// the live half: what you may call GIVEN the handles you currently hold —
// the answer to "given note_0, what can I do next?" Each live handle knows
// the event that created it (`created_by_event`); the scope's events declare
// which resources they consume (`!open`); a call is legal now iff every
// resource it requires is held. The render leads with the held state, then
// the callable subset of the vocabulary, then the session's inventions
// (always callable — their bodies enforce possession at dispatch).
//
// Same arena discipline as vocabulary: the returned string is page-backed
// and intentionally never freed — it outlives this call and lands in the
// caller's prompt buffer.
~pub tor affordances { br: *Bridge }
| ok string
| not-found string