* feat(orchestration): accept Muse model and effort for supervised workers
`worker-start --agent muse` already launched, but `--model` was refused because
Muse had no session-option catalog. Add one that maps worker preferences to
`muse --model <id>` and `--reasoning-effort <level>`; it seeds no models, so
native-chat surfaces show no picker.
opencode stays without `--model`: the opencode 2 TUI (now shipped as
`opencode`) rejects the flag, so the refusal now tells callers to rely on the
agent's own config. Help, skill guide, and docs list valid `--agent` ids and
the agents that accept `--model`.
Refs #19823
* test(mobile): repin session route closure for the Muse option catalog
Neil
52a1e2875b