Extract the Apple-Container control-plane lifecycle out of `MacosInfraService`
into `MacosOrchestrator` (backend/macos_container/orchestrator.py): the
container run on the host-only control network, the container-only DB volume,
the source-hash recreate gate, health polling against the resolved
control-network address, and `probe_orchestrator_url`. `url()` == `gateway_url()`
here (Apple has no container DNS, so one resolved address serves the CLI and the
gateway).
`MacosInfraService` now composes `orchestrator()` + `gateway()`: ensure the
networks, build both images (each service self-builds via `ensure_built` — added
to `MacosGateway` too), bring the orchestrator up first, then connect the gateway
with the orchestrator-minted token. `ORCHESTRATOR_IMAGE` + the DB-volume constant
move to the orchestrator module (with back-compat aliases where imported).
Container-lifecycle tests split into test_macos_orchestrator; test_macos_infra
now covers the composition.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
didericis
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