The server's composition root for one learner: the Turso ports bound to
that learner, composed with the catalog into the use cases the learner
actions and the playback beacon run.
Parameters
learnerId: string
The signed-in learner's id, from a verified session only
The server's composition root for one learner: the Turso ports bound to that learner, composed with the catalog into the use cases the learner actions and the playback beacon run.