Assigns a redis provider and a module that requires redis-cache; the mesh mints one
password, seals a copy to each end, writes redis its contributions and the consumer
its bound file, and the host unseals each side. redis's provisioner creates the ACL
user under the mesh's login with the mesh's password, and the consumer's delivered
credential authenticates (PONG). Nothing is placed by the test — the provider/consumer
contract (ADR 0053) working as one thing, no shared key anywhere.
Claude-Session: https://claude.ai/code/session_01LrgweAeERJYBg88c5cKDzF
