`backend/docker/gateway_provision.py` had no docker-specific code left once
`DockerGatewayTransport` moved out — `provision_git_gate` / `deprovision_git_gate`
drive any `GatewayTransport`, and the guest-side paths they write
(`/git-gate/creds/<id>`, `/git/<id>`, `/etc/git-gate/...`) are identical inside
every backend's gateway. Yet the neutral `backend/consolidated_util.py` reached
into the docker package to import them.
Move it to `backend/gateway_provision.py`, a sibling of its only importer. The
gateway *package* can't host it (git_gate already imports gateway.git_gate,
so gateway importing git_gate would cycle), but the backend layer uses git_gate
freely. Docstrings + the git_gate/service.py pointer updated.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Give every backend a `gateway_transport.py` holding just its `GatewayTransport`
impl, named consistently with the backend: `DockerGatewayTransport`,
`MacosGatewayTransport` (was `AppleGatewayTransport`), and
`FirecrackerGatewayTransport` (was `SshGatewayTransport`).
- docker: split `DockerGatewayTransport` out of `gateway_provision.py`, which
keeps only the backend-neutral provisioning logic (provision_git_gate /
deprovision_git_gate) the other backends share.
- macOS: `gateway_provision.py` held only the transport, so it's replaced by
`gateway_transport.py`.
- firecracker: move the transport out of `gateway.py`.
Behaviour-preserving; importers + tests updated.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
didericis