// Package buscompose is the bus's names and shapes every part reads (novox/hq ADR 0593 §1): the mesh's streams and
// dead letters, a module's log, stream and buckets as the bus names them, the account a part asks for, a principal's
// shape, and the grants part's memberships key. The composer of the bus's user list, which reads these and makes every
// user's permissions, is the grants part's own (mesh-delivery modules/mesh-grants internal/buscompose).
package buscompose